Order one adapter for up to three red dot lasers.  For example, one adapter will power three red dot barrel racing lasers, and two adapters are needed for a pole bending pattern.
Every green dot laser requires an adapter, unless the lasers are installed within a few inches of each other (for example on one of our laser bar systems.)  Then, up to six green dot lasers (installed within a few inches of each other) can be powered with one adapter.  Don't hesitate to call us if you have a question at 641-777-6934.