POWER SUPPLY NOT INCLUDED Simple Plug-in Installation. For most cases, the only tool you will need is a screwdriver for the built-in mounting hinge. Bright 400 Lumen (about 20 percent brighter than most under cabinet lighting available in the market). Each individual unit has Bright 49 LED Only Consumes 5 Watt Maximum. Saves at least 80 percent of energy. 24 Voltage (24VDC) offers highly energy-efficient, minimum heat contribution, longer life span, and safer. The light distributes at 120 Degree Beam Angle to optimize and maximize lighting under the cabinet. Easily Control the Brightness to the desired level using the inline dimmer switch. Important: Please ensure the wattage of the combined units does not exceed the maximum wattage of the power supply used. Modular LED Under Cabinet Lighting Power Requirement Chart What's Included Lightkiwi Lilium 12 Inch Cool White Modular LED Under Cabinet Lighting Panel 3ft Interconnect Cable Modular Connector (2) Mounting Screw Product Dimension 12.00 x 1.30 x 0.39 inch (305 x 33 x 10 mm)