White light or red / green / blue light in order to obtain the dark adaptation of the eye. With Constant Lightning Technolgoie constant luminosity and more light modes (white with 5 lm, 40 lm, 120 lm and 160 lm, green light, blue light, red for short range or as a flashing light). Weatherproof. Weight: 85 g. Incl. 3 AAA batteries.