... micro-computer controller.2,long sevice life,with high led bulb3,built-in led light4,firm structure ... with aluminum alloy body,able to use as a ... 6V(5-18V), 12V(9-18V), 24V(9-32V) with power range of 10W, 15W, 18W, 21W, 24W, 35W, 50W ... and develop new product according to your need. Full range of changeable light, long working life, low luminous decay ...