This ceiling/under-cabinet light is an excellent replacement for glass halogen lights. The 9 warm white LEDs deliver 220 lumens of power while consuming 20% of the power of a traditional halogen light. Temperature at the lens measures 120 degrees cooler using these LED lights. Installation is easy - no recessed holes are required. If you are replacing a recessed glass halogen light, they will fit over your existing hole. These lights are just 0.5" tall and mount anywhere. These dimmable lights operate on 10-30 Volts DC and have polarity protection built into the board. Available in white and satin nickel. Dimensions: 3.0" Diameter x 0.5" Depth. Amperage: 0.18 Amps. Wattage: 2.2 Watts. CSA Approved.