When I purchased my new 2013 Work & Play I was kinda surprised it didn't come with LED taillights (see pic; LED on left, OEM on right). Decided to replace the dull, somewhat dim, single-bulb incandescent units with a pair of oval, 6 1/2" Optronic LED taillights (with 10 LED's). The Optronics are a perfect fit. Only takes a minute or two to replace both units. All you need is a little pressure (using a small, dull screwdriver) to pry out the original lights from the surrounding rubber grommet. Disconnect the 3-wire pigtail, reconnect the pigtail to the Optronics, then pop the Optronics back into the grommet.
When I removed the single-bulb incandescent units, I was a bit surprised to find they're sealed units. The bulb inside the plastic housing cannot be replaced without forcibly separating (breaking??) the housing. Glad I found out about this before I had a bulb go out on the road.
Anyhow, needless to say, the new LED lights are much, much brighter (especially the brake lights), come on instantaneously, use only a fraction of power of the original bulbs, and will probably never need to be replaced