The Switch updates the single LED design by adding a second LED to the tiny, lightweight admin light. It snaps easily and securely between helmet, vest and anywhere else you can stick one of the MPLS base plates. It's got white and your choice of red, green, blue or IR light on a flexible stalk. Minor downer is the use of button cell batteries for power, but the CR2016/2032s are pretty easy to find in grocery stores these days. Major downer- the price went up from about $30 for the original MPLS to $60 for the Switch.
Grey Group Training has the exclusive on them for the launch through Christmas. Get one from them for $60 and you'll get a set of Picatinny and reverse Picatinny (Ops-Core ARC) rail mounts not normally included in the retail package.
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