CBconcept 12VRB5050-30-B Low Voltage 12-volt High Output SMD5050 LED Rigid Bar Light, Blue Voltage: 12v. Transformer is required to connect with household power outlet, and it's not included. Waterproof. Indoor and Outdoor use Clustered high intensity LED chips form a bright, evenly spreader linear directional light strip for your application Energy saving LED technology and components. Use as little as 20-Percent to 25-Percent compare to incandescent light bar, and super long useful life