The Quadratec LED Roll Bar Dome Light is the perfect way to add some extra light to your vehicle's interior. This universal utility light easily straps around any bar up to 4 inches in diameter, making it quick and easy to install. The bright LED light is great for seeing inside your vehicle, and the simple on/off switch makes it user-friendly. Uses 3 AAA batteries (not included). Whether you're installing it onto the center roll bar on your CJ-7, Wrangler YJ, TJ, JK, JL, Gladiator JT, a tube on your UTV / ATV, or hanging in your shed / chicken coop, it will provide the necessary light needed to see what you are doing. If you're looking to relocate this light with ease, simply release the Velcro and place it on any metal object for a work light on the go. By doing this, you'll have an easier time seeing what you're doing and be able to get the job done more efficiently.