Ready, set, glow! The original Firefly launched in 2012 and was widely praised. Firefly 2 is more handsome and functional inside and out. Available in an array of groovy colors—red, gold, black, blue, and white—it is also 55-percent lighter and 33-percent smaller. Comes with two rechargeable batteries, a charging dock, and cleaning kit. If the first Firefly sold for your, Firefly 2 seems a good bet, too.