The Luna 4 L-H LED Dive Light from Keldan has a depth rating of 656'. It outputs a maximum of 1500 lumens at a beam angle of 8° and a color temperature of 5500K. It will burn for up to 13 hr on low power or 50 min on high. The light features regulated variable power with 5 settings ranging from 2-37W and runs on a rechargeable lithium-ion battery with an eight-segment charge level indicator. The included charger takes 110-240 VAC power, enabling use all over the world. A US plug is included and interchangeable adapter plugs for other regions of the world are available separately. Charging time is 3-4 hr.
For safety, the light reduces power when necessary to prevent overheating and warns you with a flickering light when burn time is ending. When fully discharged, the light switches automatically to the LED safety light on the back side of the battery pack. The body of the Luna 4 is constructed from durable, lightweight aluminum, which has been anodized for corrosion-resistance; the lens is made of acrylic.