The 1 RU LED lightbar is more than just a lighting solution for your cart. It has switchable White and Red fully dimmable LED's, built into a retractable frame that sits flush with your rack, or pulls out over 4" from the face, and can articulate inward or outward 360 degrees.
It also features a Voltmeter readout on the face to help keep track of your carts power levels, and two USB ports on the back to act as a form of power distro for your tablet's, phones, or other devices that you may mount to the frame of the light.
The frame being made of T-slot allows you to mount just about anything to the light itself, from Phones, Tablet's, clipboards for sides and scripts or other devices.
It takes a locking Switchcraft 761k for the power input.