As LJAZ said... Inexpensive and LED don't really go together. I've experimented with a bunch of them from many sources and have found that SuperBrightLEDs.com to be the best for cost, durability and lighting output. Personally, after all my experimenting, I use incandescents inside and convert all my exterior lights to LED (tail and running lights). The wife and I are the "exceptions" to the rule; we find most of the LEDs too bright and the wrong color. As a matter of fact, I install dimmers on our inside lighting fixtures, or go to less watts, to lessen the amount of light. At night we tend to want to relax and take it easy and living in a stadium's light output doesn't work for us, and, as LJAZ, we don't boondock much (actually not at all now that we've got the 5er), so current consumption and heat output aren't issues.
Your lights are made by Command Electronics, you might want to look at their web site as they make "LED conversions" for most of their fixtures (including the ones that CruiserRV uses): (scroll down the page)
I went through them to get the conversion units for my 210 WBS's tail lights (they, too, are manufactured by Command) and used SuperBright for the clearance lights.
I can, however, heartily endorse the LEDs from SuperBright. There are many cheaper "look alikes" out there, but, the LEDs from them are exactly what they spec them to be. I've used them on my trailers, cars and even my ATVs. Never an issue and I've only had to return one deffective bulb (actually I threw it away and they sent me a replacement by express mail).