These LED strip light mounting brackets are upgrading design,Compare with traditional one-side fix clip have fellow advantages: 1)Widen and tight: hollow heigh only 2.2mm/0.08inch (the old one is 3.0mm) so this led clips more close to the waterpoof led tape.more tight after fix the screws. never worry about the led strip light slide or drop. 2)Pure transparent: light transmittance from 90% increase to 98% more easy to hide in plain sight. Note:Before buy this led strip light holder pls kindly check up your led strip light width and height. 1.Only suit for 8mm/0.31inch width silicone glued(IP65) flexbile led strip light which is DC12V/24V input.eg SMD3528 30/60/90/120leds/meter SMD2835 30/60/90/120/128leds/meter SMD3014 60/120/144leds/meter SMD2216 120/160/180leds/meter COB 240/360/480/512leds/meter 2.Can not use for IP20/IP67/IP68 led strip light or led rope light. Suit for led strip light connect wire type:18AWG, 20AWG Use and Installation: 1.Before installing the clips. Please make sure the light power trun off. 2.Use drill tools punch holes in cement wall/tile wall/thick metal surface and make the markings.For wood/thin metal surface no need puch holes in advance 3.Putting screws through the clips and then fixed the screws in the marked holes(Please be careful not to tighten it completely). 4. Adjust led strip continue to tighten the screw until the clip completely the light strip. 5. Check all fixed clips. suggest using 3-5 pieces clips within 1 meter long strip lights Specific Details: Product Size: L:20.6mm/0.81inch Width:6.90mm/0.27inch Height:3.90mm/0.15inch. Inner Width: 8.5mm/0.33inch Inner Height:2.2mm/0.08inch Operate temperature:-20°C-65°C Flame retardant rating: UL94V-0 Material:Polycarbonate Package Includes: 100 pcs led strip fixing clips(transparent) 102 pcs screws