Installation instructions 1. There are 3 holes in the bracket: Round rectangle hole- Screws can be moved left and right Middle round hole--To fasten the lamp for industrial use(can be left blank) Cross hole--Screws can be moved in four directions 2. Through the holes, lamps can be fixed to the object mounted with expansion screws 3. Adjust the Side screws of the bracket to get a proper lighting angle, and then fasten the screws to fix the bracket Package list 1 x 100 w Led Flood Light