Oh - THAT guy...
Join Date: Dec 2010
Location: Lowell, Oregon, USA
For some that box is a cooling fan because the bulb runs hotter than other LED bulbs.
Your question is not really that simple. LED bulbs are very bright, but they more often than not give less down road light, just more up close.
As for whether it will fit - depends on the brand. Different brands are different sizes so you will have to get the measurements of the bulb you (might)0 choose and compare it to the room you have available.
Vote one for year-round riding! Austone Darksider PVT (Passenger Vehicle Tire)
Most recent Wing: 128k+ on the 2000 GL1500 SE (Just totaled) due to being rear-ended...
Current ride (for now) 2015 Triumph Trophy SE
Avatar- 1963 Kenskill trailer
Previous wings: '78GL1000, 13k mile '77 GL1000 (resto at home, neat story!), '81 GL1100 Interstate.
Previous non-wings: CB360T, Suzuki GS550L, Yamaha 650 spcl (first bike!), Silverwing 500, Yamaha Spectre 1100, VFR700F, CB900 Custom.