Specification Operating Voltage: 12Volt DC Power consumption: 0.1 watts, 7mA Lighting Color: Blue IP Rating: IP65 Dimension: 2.6 * 1.3 * 0.86 inch / 66 * 33 * 22 mmBeautiful blue light perfect for decoration purposeSurface mounted installation. Little tips This light is designed for 12volt DC uses. For other applications, like home (110volt), please get professional electrical instructions for wiring. The light is relatively small. Dimension: 2.6 * 1.3 * 0.86 inch / 66 * 33 * 22 mm. Make sure it fits your applications. We set it to a soft brightness so it is safe for stair lighting. Wiring: black wire for positive and white wire for negative/ground. Switch the polarity if necessary. Wire them in parallel, not in series.