There are basically two types of Under-Hood Cordless LED Work Lights - one providing light horizontally from above, the other vertically from the side. The horizontal type is a long bar of small LED bulbs (number dependent on lumens), the ends of which contain spring-loaded stretch cords with foam-covered hooks that extend to both sides of a vehicle's hood (or under a shop cabinet). The vertical type is thin lantern-like, multi-bulb device, the top of which has a hooked stretch cord for hanging from above and the base of which is magnetized for securing on any metal object. Both types of work lights are powered by rechargeable lithium-ion batteries, have swivel-and-tilt ball joints and high/low brightness modes, and come with 120V AC and 12V DC adapters for charging.