This dimmable built-in constant current LED driver from the Tridonic Linear/Area Dimming Premium Series non-SELV range provides an adjustable output current between 100 and 400mA a 50 Watt output power and 92% efficiency at full load. Benefits to this compact and efficient driver include an application-orientated operating window for maximum compatibility flexible configuration via DALI ready2mains and I-select 2 and reliability proven by a 100000 hour life-time and 5 year guarantee. Designed for luminaires of protection classes I and II this driver offers supreme energy savings due to its low stand-by losses and high efficiency and has typically been used with linear and area lighting in office applications.