UV torch light

I'd recommend this NITECORE, the Chameleon, as a backup. It has a variety of outputs ranging from 1-440 lumens, as well as multiple coloured LEDs for night work. Most importantly, it has a powerful 1500mW invisible Infrared (IR) LED. This infrared LED will aid your nocturnal studies by providing additional illumination to your camcorder and allowing you to navigate without the use of visible light