Features and Benefits:High Efficiency COB LED� Front COB LED provides 150/75lm brightnessMulti-Functional Design� Metal clip at back for easy to carry� Lights will flash as a low power warning prior to thebattery running outBrightness Memory Function� Setting is recorded after 5 seconds of activation� Recorded setting is recalled next time the device isactivated;The two new pen lights are small and sturdy designedfor professional users. With its compact and durabledeisgn, the pen lights are ultra-light weight and featureanti-corrosion.