A dimmable constant current LED driver with a selectable output current between 180 250 and 350mA 15 Watt output power and 81% efficiency. This Tridonic Compact Dimming Advanced Series driver is dimmable via leading edge and trailing edge phase dimmers and offers a dimming range from 5-100% alongside a 50000 hour nominal life-time and 5 year guarantee. Comprised of a polycarbonate material this driver has been designed with overload short-circuit no-load and overtemperature protection alongside an IP20 level of protection against dust.