1:smdled:super bright 3528 smd led light source internationally renowned manufacturers of chip packaging leds, high brightness light source, beam angle up to 120 degrees, high quality, stable performance. 2: red/green/blue/yellow/pure white/warm white available. 3:3pcs leds per unit; can be cut by 3 led(dc12v, 24v) 4:with 3m adhersive tape back, easy for installation 5: input voltage dc12v, 24v 6:dimension:1000*8*2.2mm, 120 lights per meter 7:lighte degradation test:1000 hours light degradation reduce to 5%; 8:packing: 5m/roll , it is also available on request to order different sizes 9:environment protection, energy effcient than ordinary fluorescent enengy saving of 80% 10:pass ce and rohs certification this flexible led strip lights can be in waterproof: a type: waterproof with silicone glue ip65; b type: waterproof with silicone tube ip67; d type: waterproof with silicone "u" tube outside + silicon glue inside ip68;