The power supply is 18 Watt 12 DC.
Here is a list of wattage consumed by EShine lighting bars:
7" bar - 2W+/-10%
12" bar - 3W+/-10%
20" bar - 5W+/-10%
40" bar - 10W+/-10%
This power supply can handle MAX 18W load.
Power supply comes with the 4.9ft cord.
[Connector specification] 3.5mm (Outer Diameter) x 1.35mm (Inner Diameter).
Compatible with EShine Under Cabinet Lighting Bars.
Never overload power supply. Before purchase please make you have 12V DC compatible LED bars.