... . 2:As many as 22-28 kinds of modes. 3:security voltage 12V DC power supply.The Fluorescent Board features are:1 ... ,100,000 hours continuous light;4, Super energy saving, power consumption of 500 hours of continuous light only about 1 degree; Normal use,half ... ! And good writing, good rub, but also blazing. The use of dedicated power adapter to connect.This product is a wide range ...