Finally, and I mean finally, someone has developed a cordless, super bright under-hood inspection light that is well made! It's shatter proof, waterproof, oil proof, and gives off very little heat. (Unlike your typical light bulb shop light that I highly recommend you throw away for safety reasons.) The 30 bright-white LED lights are set into a convex mirror reflector for bright, focused light at 90 lumens. It has a charge status LED that is red during charge and green when fully charged. With only a 2 hour charge time for 5 hour use time, you'll enjoy laying on your back trying to find that dropped fastener for hours! There is a self contained lithium battery that has no "memory" from short charge times. Did I tell you it has a soft rubberized housing that feels great in your hands? Integrated hook spins 360 degrees for hanging under hood or other locations for "hands free" use. Plus two chargers are included; a 110 volt wall charger and 12 volt automobile power port/cigarette lighter charger. Hold the thank you letters and spend the time enjoying it.