This unit does not come with power supply, you will need to buy it separatly. This item is very easy to set up. Self-adhesive back with adhesive tape for safe and easy application. Safe to use. The working voltage is 12V. extremely low heat. It is touchable and safe to children. Cuttable and linkable. It can be cut every 3 LEDs along the cutting marks, without damaging the rest strips Flexible operations. Slim, compact and flexible PCB strip. Comes with a full 12 month warranty.Very suitable for indoor lighting and decor. Such as kitchen, under cabinet, dining room, bedroom, etc. Item :12VDC SMD2835 LED flexible strip, 300LED per 5meter per roll LED Type : single color SMD2835 LED QTY : 60LED/Meter Input Voltage :12V DC Wattage (max) :12Watt/Meter Cuttable: Every 3LED per 2'' can be cut Size(W*H/mm): 8*2 Weight : 0.15kgs per 5meter per roll Lumen Output :200LM/Mtr @Warm White,250LM/Mtr @NaturalWhite, 300LM/Mtr @Pure White Light Color : Red(620-625nm), Green(525-530nm),Yellow(588-592nm), Blue(465-470nm), Amber, CCT: 2700K-6500K PCB color option : White PCB Backing : Double-sided Adhesive backing, extra rubber mounting clip for IP67 and IP68 Beam Angle :120° Dimming : PWM dimmable (more information please refer to different Dimmer applications) Waterproof Type : Non-waterproof(indoor use), Waterproof IP65, IP67, IP68 Pre-wiring : 20cm Red/Black Lead wire at one end of the strip Packing : 5meter per roll packed in a static bag