Here is the type of bulb you want.... http://www.amazon.com/dp/B00EDFM3B2?psc=1
LED's don't seem to attract bugs as much as the halogen/incandescent bulbs do so I would not worry too much about the yellow cover.
ps you can search and find a better price that $55.00 price is way out of line..
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 765 watts of solar, 6-6 volt batteries (696 amp hour), 2000 watt (4000 surge) whole house inverter.
140 days boondocking in 2016
211/2015, 196/14, 247/13, 193/12