Ugr 19. Richard Marvan poslední úprava 17. Ugr 19

 
 Richard Marvan poslední úprava 17Ugr 19 UGR ≤ 19 according to EN12464-1; High luminous efficacy: up to 110 lm/W; Lifetime (L70/B50): 80,000 h (at 25 °C) Follows the unified LEDVANCE design language (SCALE design) Very slim aluminum housing; Equipment / Accessories

High performance with CRI90 and up to 122 lm/W. Bonne réduction de l'éblouissement (UGR < 19) et angle jusqu'à 30 ° pour un éclairage intérieur confortable. Product description. External driver for extended flexibility and easy installation. Low flicker light. 其实,ugr的含义是照明环境对于人眼的不舒适度,它是一个通过与产生眩光有关的各种参数计算得到的表征整个照明空间的不舒适眩光程度的值。. In the early days of desk-top computers there was a serious problem caused by the reflections of light fittings in. The higher the rating, the more glare there will be from the light source, so which option business owners opt for will depend on their workplace setting. Fast Calculation. Our product is used by the most trusted lighting brands for low glare luminaires utilized in computer workstations, classrooms, and any place that. Energy savings thanks to system efficacy of up to 100 lm/W. 2. Standard, ad alta efficienza, UGR19, CRI 90 e DALI creano un'ampia scelta per i clienti. Er sagt aus, dass rund 65 % der Menschen sich durch das Licht nicht gestört fühlen. Product description. It’s a numerical way of defining how bright a luminaire appears in-situ and it goes back to the earliest editions of lighting codes for interior lighting – office lighting, in particular. Très faible scintillement <5%. Good glare reduction (UGR < 19) and cut off angle up to 30° for comfortable indoor lighting. 40. 000Hrs, prismatic diffuser, aluminium frame, steel body, electronic non dimmable driver. CCT switch (3000 K, 3500 K and 4000 K) DALI and FLEX versions available. a. com p. 这个UGR眩光表格是室内灯具在进行光度数据测试时生成的一个表格,主要作用是快速查询该灯具在标准条件下的室内空间的UGR值。. UGR <19. 中山健坤带你解读如何解读防眩光表—ugr<19防眩光板测试结果-江门市健坤光学材料有限公司-经常有同学问,使用ugr板(防眩光板)后配光曲线测试报告中的ugr眩光表个该怎么看?一般的人都不大关心这个表,但问的人却是心急如焚啊,问这个问题,要么是卖灯的,要么是做外贸的,还有就是做光学. Low flicker light. A Led Panel Light UGR<19 is a type of lighting fixture that uses LED (light-emitting diode) technology to produce light. Low flicker light. External driver for extended flexibility and easy installation. High performance with CRI90 and up to 118 lm/W. 5 x 595 x 595 mm. Product benefits. Nello specifico quest’articolo è approfondito sul tema dell’ UGR -Unified Glare Rating. Los valores normativos van desde un UGR de 10 a 31, siendo 16 no deslumbrante y 28 deslumbrante. Buena reducción del reflejo (UGR ; 19) Bajo flickering gracias a un mecanismo de control electrónico especial; Ahorro de energía gracias a la eficacia del sistema de hasta 90 lm/W; Rápida integración en el techo, gracias a la instalación de montaje sencillo; Áreas de aplicación. Adaptée à la norme EN 12464-1 grâce au faible éblouissement !Réduction de l’éblouissement appropriée (UGR ; 19) Faible scintillement grâce à un ballast électronique spécial; Économies d'énergie grâce à l'efficacité du système allant jusqu'à 100 lm / W; Convertisseur externe pour plus de flexibilité et une installation facilitée; Versions avec alimentation DALI disponiblesIVY 2 LED UGR<19. Our UGR<19 Galaxy office panel light solutions are flexible enough to accomplish these goals in a range of office types, from open or closed rooms and meeting halls to lobbies and utilities. Kantoor werk UGR <19. Areas of application. Dieser Wert muss bei der Bürobeleuchtung mindestens eingehalten werden. A lower UGR rating means low glare. 5 years guarantee. Product features. The range includes High Efficacy, UGR<19, DALI luminaires. Rectangular (1200 mm x 300 mm) stand-alone luminaires with direct (70 %) and indirect (30 %) light emission. I valori standard di riferimento dell’UGR sono compresi tra 10 (nessun abbagliamento) e 30 (abbagliamento fisiologico considerevole) distanziati di 3 unità (10, 13, 16, 19, 22, 25 e 28), da ricercarsi nelle due direzioni di vista (trasversale e longitudinale rispetto all’apparecchio): più basso è il valore, minore è l’abbagliamento. Low Flicker, 33 W, Neutral White, 4000 K, 3400 lumens, 103 lm/W, 50000 hours lifetime (L70), PMMA opal diffuser, aluminium frame, steel body, electronic non dimmable driver. Caractéristiques. Driver integrated into the remote driver box. Extruded aluminum frame. Durch die besondere Oberflächenbehandlung ergibt sich daher ein UGR Wert von unter 19. Good glare reduction (UGR < 19) and cut off angle up to 30° for comfortable indoor lighting. Good glare reduction (UGR < 19) Through-wiring possible with included connector box. PL PFM 600 30 W 3000 K UGR19. Energy savings thanks to system efficacy of up to 100 lm/W. Good glare reduction (UGR < 19) Comfortable light and high color consistency. Pendant UGR < 19 linear light Ab6595L. Versions with DALI ECG available. UGR <19; UGR <19. However, it is a reasonable expectation that all entries in the first columns of the UGR table for viewed crosswise and viewed endwise would meet UGR<19 – see the ROBUS SPACE UGR. Through-wiring possible with included connector box. 5 mm² (25 W and 30 W versions) 5-pole terminal block, cable cross section up to 5 x 2. Good glare reduction (UGR < 19) Low flicker light thanks to special electronic control gear. Good glare reduction (UGR < 19) Low flicker light thanks to special electronic control gear. Versions available with CRI 90. LED-Panels mit einem UGR Wert von weniger als 19, so wie dieses Panel, sind speziell für die Beleuchtung von Bildschirmarbeitsplätzen geeignet. Vollständiges LED-Panel für 595x595 mm Zwischendecken. 5-pole terminal block, cable cross section up to 5 x 2. PANEL PERFORMANCE 600 UGR<19. Suitable for use in dusty and damp locations thanks to high IP rating. 5 years guarantee. Hauteur du luminaire 50 mm. Product benefits. IoT-ready luminaire with DALI-2 technology. Emergency lighting possible with LEDVANCE Emergency Conversion Box. Opción de Kit de Emergencia. Energy savings thanks to system efficacy of up to 100 lm/W. Suitable for use in dusty and damp locations thanks to high IP rating. Référence: BL04452004. High luminous efficacy: up. Product benefits. Rectangular recessed panel luminaires, tool-free installation for 1200 x 300 mm ceiling systems. Good glare reduction (UGR ≤ 19) Low flicker light thanks to special electronic control gear. 19. Led Panel Lights UGR<19 are often used in commercial and residential settings to provide general lighting or task lighting in. UGR-Werte sind für den Bereich von 10 bis 30 in Stufen definiert. Views : 1562. UGR. Suitable for use in dusty and damp locations thanks to high IP rating. Items that fall under the UGR19 category mean that they have a Unified Glare Rating of 19 or under, and those under UGR22 will have a rating of 22 or less. Stmívatelné. URG to ujednolicony wskaźnik olśnienia, określający poziom olśnienia. - All patterns are possible; Seamless Connection. Versions with DALI ECG available. Easy and quick installation thanks to connector box with 5-pole toolless terminal. UGR is lighting installation specific. The Pointer 40 with a bundle of 35 degrees achieves a UGR of 5. The WELL Building Standard under Light L04 Electric Light Glare Control has this: Choose between the following: Option 1: Luminaire. Il s'intègre dans presque toutes les découpes de plafond existantes et peut, si nécessaire, être raccordé par. 5-pole terminal block, cable cross section up to 5 x 2. Because of the different testing methods, the conversion might not be applicable to all luminaires and setups. In [19], evaluations were made by comparing UGRs obtained with the original method. A simple solution to have the most updated technology in terms of interior lighting. DALI driver option available. Fast. Produits - Luminaires. Observer positions are the single most critical issue for proper UGR analysis. Het LED Paneel Delta Pro UGR<19 is een ultradun inbouwarmatuur geschikt ter vervanging van traditionele T5-armaturen waarmee een energiebesparing tot 50% wordt gerealiseerd. Good glare reduction (UGR < 19) Low flicker light thanks to special electronic control gear. Good glare reduction (UGR ≤ 19) Low flicker light thanks to special electronic control gear. Etalement initial de coordonnées trichromatiques SDCM<3. Solar Panel lights for fence panels also help in getting much-needed light on the ends of yards and gardens. −Good glare reduction (UGR < 19) and cut off angle up to 30° for comfortable indoor lighting −Easy and quick installation thanks to connector box with 5-pole toolless terminal −Low flicker light −Suitable for use in dusty and damp locations thanks to high IP rating −5 years guarantee −Housing material: Aluminum mirror-finished. Easy and quick installation thanks to connector box with 5-pole toolless terminal. Good glare reduction (UGR < 19) Through-wiring possible with included connector box. The lower the UGR value the less discomfort there will be. Product features. Energy savings thanks to system efficacy of up to 110 lm/W. Product benefits. PL CMFT 600 P 28W 830 U19 PS. Direct replacement for luminaires with fluorescent lamps; Offices, conference rooms; Reception areas, foyers. As reglas internacionais como EN12464 recomendam um maximo de UGR para diferentes situações. Areas of applicationUGR<19 Linkable LED linear light. Versions with DALI ECG available. Energy savings thanks to system efficacy of up to 110 lm/W. For example, it is completely misleading to market and promote an LED panel as UGR<19, where it can be proven by analysing the photometric files in a lighting. 5 mm² (36 W versions and DALI types) Luminaire versions with IoT. 1: UGR 22: Common spaces in buildings. 28 KB) Soubory fotometrických a světelných návrhů. Emergency lighting possible with LEDVANCE Emergency Conversion Box. Product features. Product benefits. Buona riduzione dell'abbagliamento (UGR < 19) Luce a ridotto scintillio grazie ad uno speciale alimentatore elettronico. 5 mm² (36 W versions and DALI types) Luminaire versions with IoT. Чем ниже показатель, тем меньше слепимость. €155,95 €119,95. Product benefits. It is designed to be mounted on a ceiling or wall, and it typically has a flat, rectangular shape. 5 years guarantee. The table above compares UGR values with corresponding 7-step discomfort glare criteria (developed by R. Der R UGL-Wert 19 z. Good glare reduction (UGR < 19) and cut off angle up to 30° for comfortable indoor lighting. Good glare reduction (UGR < 19) and cut off angle up to 30° for comfortable indoor lighting. Unified Glare Rating (UGR) is an increasingly important metric for installers as an. 3-pole terminal block, cable cross section up to 3 x 2. Для чтения, письма, работы за компьютером, тренировок, отдыха, учебы, рекомендуется показатель не ниже UGR &lt; 19. Deep cut-off angle for glare control and comfort. Items include: Meals, Ready-to-Eat: I ndividually packaged and used by the services to sustain individuals during military operations that preclude organized food service facilities. Good glare reduction (UGR < 19) Comfortable light and high color consistency. DIALux软件中生成的UGR眩光表格. For example, office environments. Sir Platter UGR &lt;19. yimei 조명의 전체 램프 제품 라인은 건강 램프의 표준을 충족합니다. WELL Building Standard. - 1x Transformateur LED | Cordon d'alimentation inclus. 45 kb) informations spÉcifiques au pays. Driver integrated into the remote driver box. Flux lumineux sortant 2400 lm. Das bedeutet gleichzeitig, dass die restlichen 35 % durch die Lichtquellen negativ beeinflusst werden. Product benefits. Product features. Для чтения, письма, работы за компьютером, тренировок, отдыха, учебы, рекомендуется показатель не ниже UGR &lt; 19. For the guidance on UGR levels, please see the table below. All components for a complete. Edge lit LED flat low glare panel (UGR<19). LED-Einbaupanel IP44 - 625x625 mm in 4. UGR<19 is best for office-based work such as reading, writing, and meetings. External driver for extended flexibility and easy installation. Ook biedt led24 flikkervrije drivers voor LED panelen aan. Panel Compact 600 33W 4000K UGR JPG (1. Calcolo veloce. 1 5. External driver for extended flexibility and easy installation. Accessoires de montage en option : - Cadre de montage pour panneaux LED. Toch bieden fabrikanten een UGR-waarde per armatuur aan op basis van een referentieruimte met een. Im Gegensatz zum Vorgängerverfahren, bei dem die Blendung durch die Leuchtdichten einer einzelnen. Good glare reduction (UGR < 19) and cut off angle up to 30° for comfortable indoor lighting. Versions with DALI ECG available. View all details. Jedná se o velmi důležitý faktor při výběru osvětlení pro každý interiér. The Led Tri-proof Light is available in multiple wattages (20W, 40W, 60W, 80W, and 100W) and lengths (2F, 4F, and 5F). A UGR of <10 will produce minimal glare and will be virtually unnoticeable, where as anything higher than UGR 30 would severely impair visibility. Flusso luminoso. Areas of application. Profondeur d'encastrement : 34mm (64mm driver inclus). The UGR rating helps to determine how likely a luminaire is to cause discomfort to those around it. 4000. Low flicker light. La specifica UGR<19, infatti, indica un grado di abbagliamento luminoso molto basso. View all details. The unified glare rating system measures direct light to predict “distraction levels” in a room. Rectangular (1200 mm x 300 mm) stand-alone luminaires with direct (70 %) and indirect (30 %) light emission. In DIN EN 12464-1:2011-08 the steps within this scale are 13, 16, 19, 22, 25 and 28. UGR≤25: Heavy industry . UGR <16 Technical Drawing; UGR <19 Reading, writing, training, meetings, PC based work. es. The formula requires the knowledge of the position and brightness of each potential glare source. In Räumen mit Bildschirm- und Büroarbeitsplätzen darf der UGR-Wert nicht größer als 19 sein, unabhängig vom Beleuchtungsniveau. Économies d'énergie grâce à l'efficacité du système allant jusqu'à 110 lm/W. Direct replacement for luminaires with fluorescent lamps; Offices, conference rooms; Reception areas, foyers. Product features. Versions with DALI ECG available. IoT-ready luminaire with DALI-2 technology. Wir erklären dir, was es mit dem UGR19 Wert bei LED Panels auf sich hat. External driver for extended flexibility and easy installation. I pannelli LED con indice unificato di abbagliamento UGR<19 soddisfano la normativa UNI EN 12464-1 sull'illuminazione dei luoghi di lavoro e possono essere usati per illuminare uffici e aziende, ma anche scuole, università e biblioteche. Integral LED UGR 19 Advanced Panel. This downlight with traditional deep reflector which provides a perfect combination of high lighting efficiency, comfortable lighting and humanization design UGR<19, without compromisingon lighting performance (color rendering and color uniformity). UGR19 lighting is a headache ? No, UGR19 isn’t a headache but the guidelines and the working out and the procurement of it is. University of Málaga, 29071 Málaga, Spain. 5 years guarantee. 3-pole terminal block, cable cross section up to 3 x 2. Energy savings thanks to high system efficacy: up to 130 lm/W. Easy and quick installation thanks to connector box with 5-pole toolless terminal. 5 mm² (25 W and 30 W versions) 5-pole terminal block, cable cross section up to 5 x 2. Das bedeutet gleichzeitig, dass die restlichen 35 % durch die Lichtquellen negativ beeinflusst werden. European Standard BSEN 12464: 2002 specifies the ideal UGR values for typical environments, e. Insaver Slim offers reduced glare of UGR<19 for lumens up to 3050lm, which makes it perfect for offices, education. Emergency lighting possible with LEDVANCE Emergency Conversion Box. Op voorraad. Start Panel LED UGR <19. View all details. Replacement low glare led panel light can let you enjoy a comfortable and. Hopkinson). PILA RC007B LED40S/840 PSU I W60L60 OC. 59 MB) Catalog info 1. Fast. UGR < 22 - Fabbriche, industrie e corridoi Acquista ora. Material: PC. Das Verfahren des „Unified Glare Rating” (UGR) wurde von der Internationalen Beleuchtungskommission CIE (Commission International de l'Eclairage) entwickelt, um die Bewertung der Blendung weltweit zu vereinheitlichen. Start Panel LED UGR <19 Características del producto. It is noticeable that all the UGR image, UGR LID, and UGR’ values are higher than the typical acceptable UGR image, UGR LID, and UGR’ values for indoor lighting, being 19 ; however, the absolute UGR image, UGR LID, and UGR’ values are highly dependent on the value of the background luminance. Suitable for recessed ceiling systems with grid size of 600 x 600 mm. Fattore di abbagliamento UGR: UGR<19 (in ogni situazione). It can be calculated precisely for a specific lighting arrangement using AGi32, or can be summarized for typical scenarios by a table as displayed in Photometric Toolbox. Within the UGR tables there are two observer positions sitting along the back wall in the endwise views andUGR<19 IP69K Tri-proof Light; Wine Cellar LED Tubular Light; LED High Bay/ Low Bay Light. Gemiddeld industrieel werk UGR <25. High performance with CRI90 and up to 122 lm/W. Fast Calculation. Product benefits. In this research, the luminaires with non-uniform luminous intensity. Pannello LED professionale ad alto rendimento luminoso, con grado antiabbagliamento UGR < 19. The new European standard sets UGR = 19 as the maximum permissible value for offices, which is equivalent to the luminance limiting curve for 500 lx in Quality class 1. Zo is de UGR waarde in gangen hoger, omdat men daar minder tijd doorbrengt en nagenoeg geen. Good glare reduction (UGR < 19) Through-wiring possible with included connector box. Luminaire versions with IoT-ready DALI-2 driver available. 而当我们拿到一个灯具光学参数的时候,有一页叫做ugr数据表,所谓ugr<19我们看的就是这个表格,其实它是为了. Panel Compact 600 33W 4000K UGR JPG (1. Energy savings thanks to system efficacy of up to 100 lm/W. Easy and quick installation thanks to connector box with 5-pole toolless terminal. That is achieved by combining a translucent or semi opal film with a solid prismatic sheet. Dimensions & Weight. Suspension kit included; References / Links. 11 Instituto de Investigación Biosanitaria ibs. Sir Platter is a simple and elegant form combined with appropriate optics, ensuring the highest comfort of work and staying in the room. Product features. Suitable for switching by PIR, Microwave or Photocell. Luminaire adapté pour VIVARES et autres systèmes de gestion Zigbee 3. Good glare reduction (UGR < 19) Low flicker light thanks to special electronic control gear. Inquire Now. Nello specifico, in Italia vige la norma UNI 11165:2005 che stabilisce i criteri per il calcolo dell. IP20. Afhankelijk van de situatie, heeft een waarde lager dan 25 de voorkeur. Buona riduzione dell'abbagliamento (UGR < 19) Luce a ridotto scintillio grazie ad uno speciale alimentatore elettronico. Push DIM function for dimming and switching directly on a pushbutton. Good glare reduction (UGR < 19) Low flicker light thanks to special electronic control gear. The UGR ranges from 5 to 40. Dimmerabile. Adjustable lumen output with multi-power driver design ranging from 12-36W and 1825-5100lm (4000K) to meet all office needs with one single product. Vyzařovací úhel. External driver for extended flexibility and easy installation. Version with DALI ECG available. Glare sources within a typical field of vision on the lit environment can be numerous, including daylight. UGR19 stands for Unified Glare Rating of 19 or less, which is a parameter of how bright a luminaire is in a sample room layout, and is particularly important in office. Nos pavés LED NOVA de la marque DeliTech™ sont tous UGR inférieur à 19. 5mm/2. Parameters below are specific for each of the product codes: ELECTRICAL DATA PHOTOMETRICAL DATA DIMENSIONS & WEIGHTSSTART Panel IP40 UGR19 600x600. The relationship between calculated UGR value and Hopkinson's discomfort glare criteria is as follows:UGR. See full list on synergycreativ. High luminous efficacy: up to 110 lm/W. Each luminaire is considered as a uniform light source characterized by one luminance level, 1 position index and 1 solid angle (Fig. The feature of UGR<19 can be achieved by smaller beam angle of the LED panel light. Energy savings thanks to system efficacy of up to 100 lm/W. High lumen maintenance and glare limitation: L <1,000 cd/m2 at 65° from the vertical axis for UGR 19. There are dozens of combinations for you. Product benefits. Areas of application. Value for money luminaire. Wiring envisaged: On-Off - DALI inverter for Emergency lighting. LED iluminación vial y LED iluminación de campos de futbol y pistas deportivasIES Indoor Report UGR Table. Our Aviora series has a UGR lower than 19 while our mini-downlights have a UGR below 16. For office lighting, we recommend a UGR level of 16 to 19, ensuring comfortable workplace illumination. A lower UGR rating means low glare. 36,00 W. 13 Department of Organic Chemistry, Faculty of Sciences. Areas of application. led24 biedt LED Panelen aan die geschikt zijn om op kantoren te gebruiken (UGR <19). Flujo luminoso. Highly versatile due to selectable CCT and power steps (CCT/Power Select - CPS) on the driver. Offices, conference rooms. Extended services such as energy monitoring and remote maintenance possible with DALI versions. 36,00 W. UGR-tabeller anges i steg om 3, då 1 steg blir knappt märkbar medan 3 steg upplevs som en klar förändring av bländningen. The values of UGR range from 13 to 30. Weitere Informationen zu den verschiedenen UGR-Werten finden Sie in unserem Blog. Blændingstallet angives på en URG-skala, som i praksis går fra 13 til 28. Unified Glare Rating (UGR) is an indicative rating for glare based on prescribed set of circumstances in a lit environment. UGR 19: Kontor; Skrivning, maskingskrivning, läsning, databearbetning Kontor; Konferens- och sammanträdesrum. En función del tipo de actividad se recomienda un límite máximo para dicho índice. UGR<19 performance downlight suitable for commercial and education applications. For office lighting, we recommend a UGR level of 16 to 19, ensuring comfortable workplace illumination. Product benefits. UGR ≤ 16 Technical drawing. Introducing the third generation of our premium panel series: Noxion LED Panel Delta Pro V3. Sogenannte "UGR<19" LED Panels sind speziell für die Beleuchtung von Bildschirmarbeitsplätzen geeignet. Observer positions are the single most critical issue for proper UGR analysis. To jeden z podstawowych parametrów charakteryzujących otoczenie świetlne. g. There are two UGR options: UGR<22 and UGR<19. In the market, many clients are requiring UGR19 panel light, but different clients have different standards on UGR, most of clients only require the first value of 4H/8H at. Groupe de risque photobiologique RG0. The UGR-A is designed to maximize the use of commercial items and to simplify the process of providing high quality food service in a field environment. Suitable for recessed ceiling systems with grid size of 600 x 600 mm. The UGR<19 option is ideally suited for offices, meeting room or libraries; the UGR<22. Container Size. • The factors that affect UGR include background luminance , average luminaire luminance and solid angle, and displacement from the line of. Numero cicli accensione / spegnimento. In de tabel hieronder worden de aanbevolen UGR waarden volgens de NEN-EN 12464-1 weergeven: UGR19 LED panelen. IK 03. Energiebesparing dankzij systeemefficiëntie van maximaal 100 lm / W. Installation rapide et facile grâce au boîtier de connexion sans outil 5 pôles avec repiquage. Although not a legal requirement, compliance with EN 12464-1 is. Wide operating ambient temperature range of -20°C to +40°C. UGR<16 is best suited for technical drawing and warehouse applications. UGR≤28: Railway platforms, foyers . Total luminous flux: 4400 lm, Luminaire input power: 40 W, Lamp efficacy: 110 lm/W, Colour rendering Ra > 80, colour temperature 3000/3500/4000 K adjustable via switch. Value for money luminaire. Lamp Efficacy >100lm/W. View all details. 10 oz Seasoning, Steak 1 1. Questo indice è soggetto a normative Europee e nazionali che ne stabiliscono i limiti consentiti negli ambienti lavorativi. For a luminaire to be classified as low glare it must have a UGR of ≤19 at desk level. Start Panel LED UGR19 600x600 : Dalle LED avec diffuseur opale offrant une répartition homogène et claire de la lumière. External driver for extended flexibility. 5 years guarantee. External driver for extended flexibility and easy installation. Items that fall under the UGR19 category mean that they have a Unified Glare Rating of 19 or under, and those under UGR22 will have a rating of 22 or less. Product features. Fast Calculation. Offices, conference rooms. La valeur UGR maximale recommandée varie en fonction de l’activité pratiquée. Very homogenous light, UGR<19 versions available in accordance with the Norm UNI-EN 12464-1; Easy and quick installation, advanced flexibility due to including non-flickering (≤5%) external driver; DALI versions available; Very slim housing (10. Product description. Fast Calculation.