Lumencraft Inc. has just released GatLight V2, the world’s first (according to the manufacturer) variable brightness flashlight. It uses patent-pending driver circuitry to increase usable battery life by up to 30% while keeping constant fully adjustable output power. Video after the jump.

“The brightness of an LED is often limited to the thermal efficiency of the housing that contains it. The Gatlight’s unique design allows for a much larger heatsink area as compared to standard cylindrical designs. The Gatlight also contains dual thermal cutoff switches to allow the light to be driven at full power without the risk of damaging the LED. Detailed thermal modelling proves the GatLight’s superiority.”

[GatLight via YankoDesign]