... module use as channel letter 4.CE&RoHs The best choose Maxware LED channel letter Features: 1. World' ... more than 110LM / W(white) 2. Match the DC DC converter can achieve 12 ~ 24V wide ... . Full aluminum heat dissipation, low temperature rise, the strict high and low temperature experiments, higher reliability 6 ... 10- 20pcs a string,use on the light box as the backlit,also can be lighting,decorate light ...