The Compact OptiCube® light sets a new standard in size brightness and versatility. With batteries it weighs only 78 grams and it's only 9.3 cm long. That's 2.6 ounces and 3.7 inches - much smaller (and brighter) than an energy bar. Three ultra bright LEDs are magnified with our OptiCube® lens and reflector to produce more than 180 candlepower.