Dive the 6.6 watt C4 with long lasting disposable alkaline C-size batteries in remote locations where there is no electricity. The long shelf life of alkalines will insure the light is ready when you need it in an emergency. Back home or where there is electricity, power the C4 up to its 10 watt maximum by adding the accessory Rechargeable Upgrade Kit. The unique dual lamp system allows you to switch between two different lamps underwater. Switch to a second lamp if the first burns out. When using the Rechargeable Kit switch between high-beam (10 watt) and low beam (6.6 watt). Use the high beam for spotting distant objects and the low beam for extending battery life.
Basic 6.6 watt model operates on 4 disposable alkaline C-cells
Dual lamp system allows for safety back up and 60 hours total lamp life
Rechargeable Upgrade Kit includes 10 watt lamp, high temperature reflector, rechargeable nicad pack and charger
Dual lamp system allows switching between two lamps underwater