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The Impact 16 Channel Radio Slave Transmitter is designed to trigger strobes wirelessly. This system works in tandem with most AC powered strobe packs or monolights. There are no batteries in the receiver to worry about during a busy photo shoot.
Sixteen channels offer more than ample avoidance of local radio interference, and total freedom from dragging around a sync cord. Sixteen channels also provide the opportunity to assign different groupings of lights their own channel, to be triggered by switching the channel in the transmitter that mounts on a camera's hot shoe.
The transmitter is powered by an included 23A, 12 volt alkaline battery. The battery has a lifespan of +/-10,000 flashes, because the transmitter only draws power from it when it is firing.
Note: This remote does not provide high-voltage sync protection, and is not recommended for use with flash units that have a trigger voltage of more than 6V.