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The Lumedyne P1NF 25Ws Power Pack is a 1.6 lb (0.72 kg) power pack for shooting with high ISO/wide aperture to blend your flash with ambient light--when you only need a small boost from the flash unit. Any Lumedyne battery (not included) can power it. The P1NF has very simple switches (with settings of 3, 6, 12 and 25Ws) that make it possible to change settings on the fly very quickly, without even looking at the pack. It can supply up to 800 full power flashes on one charge. But you still have access to all the accessories that Lumedyne offers, and best of all, with Lumedyne's optional Booster Module(s), you can increase the power of the P1NF to thousands of watt seconds when it's needed. Flash head is not included.
This is the smallest, lightest and least expensive power pack that uses Lumedyne heads and accessories
Four power settings at 3ws, 6ws, 12ws, and 25ws controlled with two slide switches
Seven light battery gauge and two head jacks plus fully compatible with Lumedyne heads and accessories