I ordered 4 U-King stage lights (LED PAR cans) 1 did work at all, 2 stopped working after 1 hour of use and the 4th stopped working after 2 hours of use. The only response I received from the company was that they were outside the 30 day refund window. Lights are supposed to work, not give out after a short period of use, they obviously do not support their products. They are obviously junk. A warning to future customers - do not purchase these products