Weltool M6-RD Red LED Penlight

Designed for professionals, this red LED penlight by Weltool is ideal for short-distance lighting without affecting vision in dark environments. It's suitable for astronomical observations, pilots viewing navigation maps, inspecting instruments in vehicles, hunters, night-walkers, and examining animals or eyes. In a medical setting, it can be used to find veins, check pupils, and assist with various tests such as HGN and SFST. The penlight features an optical glass lens for a uniform spot effect and an even beam, and includes a 1-inch scale and a detachable pocket clip for portability.