power supply Passed CE. When it is short circuit, over loading, over pressure, it will cut the electricity. It is Waterproof power supply:INPUT:220AC/50Hz , 0.09AOUTPUT:DC12V, 20W/1.67APass the United States, Canada attestationIt is steady to press, and can prolong the LED light service lifeThe IP67 can be uesd inside and outside.