The GEARWRENCH Ultra-Thin Flex-Head Work Lights each feature a dual setting LED main light mounted on a pivoting flex-head that swings open 360 degrees to direct light wherever it's needed, a 30 lm LED top light at the tip of the flex-head for illuminating hard-to-reach areas, and an integrated fold-away hang hook and magnetic base for easy positioning. A memory function saves the power selection from the previous use. The run time of this light is three hours at 500 lm and six hours at low 250 lm power. A constant current feature delivers the rated lumens until the battery runs out. When the main light has five minutes of power remaining a low battery warning indicator flashes. The unit takes four to five hours to charge, and can be charged with AC power or by using the included USB cable. There are two models available: a 12.5" 500 lm model, which folds flat against its body for portability and storage, and a smaller 8.4" 150 lm model.