Six-cell series rechargeable light and AC charger, 120,000 CP. Will maintain constant brightness from the start. 1:1 burn-to-charge ratio, full minute of use for every minute its charged. Taillight pulsing white and red LEDs (can be used for safety situations). Waterproof, chemical and heat resistant. Rubberised bottom and bezel for shock absorption. Battery status indicator. Articulating head. Weighs only 1.9 lbs.