A compact and versatile primary dive light
UK's innovative optics system now concentrates 89% of the total lumens of the light into the center of the beam, reducing backscatter and greatly improving beam brightness. Typical lights only focus about 40% of their lumens in the center beam, meaning much of the lumen output is lost as stray light.
AIRLINE SAFE RECHARGEABLE BATTERY
The light uses airline-safe Nickel metal hydride batteries, which can be shipped in your luggage, unlike lithium batteries, which must be kept in the cabin during travel. This makes the rechargeable C4 perfect for traveling.