A dimmable constant current LED driver from the Tridonic Linear/Area Dimming Advanced Series. This driver provides a 50 Watt maximum output power up to 91% efficiency and an adjsutable output current between 250 and 400mA (via I-SELECT 2 Plugs). Typically used in linear or area lighting this driver is also suitable for emergency escape lighting systems (acc. to EN 50172) and its protective features include overtemperature short-circuit overload no-load and input voltage range protection.