The built-in clips are invisible, so to speak. Once you have fixed the panel to the ceiling using the springs, you will therefore not see the clips. This gives you a beautifully sleek design.The clamps can be used with all our Led panels.Suitable for a ceiling in which you can drill and where there is at least 3.5x15x5cm (HxWxD) space to put the driver down.This set consists of 4 built-in clamps.