1, the power supply pulse-width modulation (PWM) switching technology controlled by a professional integrated circuit composed of the main components are original, import, stable and reliable, is a highly reliable power supply. Internal professional design fan cooling, the inside has enough room for heat dissipation. Waterproof power supply so you can be more stable than the effect of the work. Live longer, easy to use, you can hang on the wall. 2, efficient energy-saving: power, high efficiency, low standby power consumption. Long service life, compared with ordinary transformers, energy saving about 40%. 3, applies to a wide voltage range, grid voltage 170 - 250V (50/60HZ) changes, able to work steadily. 4, the output voltage fluctuation is small, high stability of the output voltage. Improve LED light effects, reduce the light decline, prolonging life. 5, shell made of aluminum alloy, can better protect the power supply and provide better heat dissipation. 6, the switching power supply design of a variety of specifications, suitable for supporting all kinds of LED lamp applications. For example: LED module, LED tube, rainbow tubes, LED light with, LED lamps and so on. 1pc/white box,20pcs/master box 0.6kg 199*98*38(mm)