This (bags) lamp is quite large and massive! The light output is better than that of all known Maglites flashlights (also Mag Charger). The battery function is solved optimally-covert charging socket (Waterproof). Store in a car or in a truck (24V) possible. Disadvantage: No real glass installed (light emission surface). Only very slight focusing of the light beam possible. But in light lacks determined non-optimal for distances up ca.200m.