B-right 25W 11-inch Square LED Panel Light, 180W Equivalent, 1800lm Ultra-thin 5000K Cool White LED Recessed Ceiling Lights for Home Office Commercial Lighting Non-Dimmable Panel Lights: Wide working voltage of AC 85-265V, no fliker and no dazzling, CE & ROSH & FCC Approved. If you like the Dimmable lights, please search B015DSPN3W on Amazon Energy Efficiency: 1800 lumens, 180 watt replacement uses only 25 watt. Use 90% less energy compared to CFL, incandescent and halogen bulbs Extension Cable Provided: 5FT, 10FT, 20FT Extension Cable to extend the distance between light fixture and led driver, if you need, you can search "B-right extension cables" on Amazon, buy now for your convenient installation. How to Install: Turn off the power-Cut a appropriate hole on sheetrock-Connect the led transformer to the power supply-Pull up the sprinng clips and put the panel hook on the hole-Adjust the panel to stick the ceiling tightly. Low Profile Ceiling Light Fixture: This is an excellent cost performance led ceiling light fixture ideal for living room, bedrooms, washroom, kitchen, hallways, stairways, offices and many more commercial or residential place.