First, sorry for my English, because i'm french quebecer.In The down side, you have (inside of the box) 6 PLASTIC pins to retain the cover. Don't forget it, you can slip the cover BY SIDE AND IN THE SAME TIME, at the each side, the pin is not at the same place.In the SIDE OF THE LIGHT, The FIRST pin is at 1 inch of the front side the NEXT ONE IS AT 2.5 INCH OF THE FRONT and the last one is 5 inch of the front. Put 3 smalls screwdrivers at these place and push them delecately in the outside direction. That's it .