【SMD 5050 LED Rope Lights】There are 300pcs leds on 16.4ft flexible board.On the back of tape,there is double-side adhesive tape which can help you install it easier. This SUPERNIGHT strip can work with 12V 5A power supply/dimmer (Not included). 【Cuttable and Joinable】Please find the scissor mark, then you can cut the strip as you request;Also you can use other strip tools to connect more strips. 【IP65 waterproof PCB】This 5M length flexible strip is waterproof(IP65),indoor use only. The polyester resin material covering the PCB to protect LEDs against multi-directional, low-pressure water jets. 【Easy to instsall】Strong adhesive tape on the back of the tape can help you easy to install the strip. Please make sure the surface is dry, smooth, no dust. 【SUPERNIGHT Best Service】Please contact with us if our 5050 LED strip light can not work or has other problem, please contact us asap. Professional SUPERNIGHT team would help you solve any problems.