2ft white color C2835 Series LED showcase lights has built-in power driver. It does not require additional power supply. You can add and link additional light to extend the length. It can be use in damp location. These lights are very bright it will sure make your merchandise stand out. Perfect for your walk in cooler. Advantage of LED lights: LED lights operates at 12v DC use very low energy consumption that you can benefit in electricity saving in the long run. LED lights has a long life span of 40,000 hr which is equivalent to 10 years or more. LED lights produce very little heat which can save your air condition electricity bill in the summer. Unlike florescent light, LED turn ON instant to full power with no buzzing sound. LED light does not produce UV or use of any harmful mercury which is better for the environment. SPECIFICATION: Emitting Color: Pure White 5500K LED Type: 2835 SMD Input voltage: 12V DC LED chip per light: 48 chips Diameter: 1 inch Package content per set: 2ft LED C2835 Showcase light 1pcs AC lead cable for hard wiring 2pcs mounting clips All item will be tested before shipping to ensure functionality of the product.