Swapped out my halogen "alley" lights on the roof rack with Totron 27 watt flood lights. At only 2 amps and a daylight output, they'll also make great campsite lights. The 50W halogens were okay, but they look downright dim compared. (Yellowish light) These have a much wider flood pattern, and very even output. (No hotspots or artifacts) They reach out to about 75 feet.
Also, with LED's they're regulated, so as the battery voltage drops, they stay at 100% output. (HID's also do this) Ordinary "hot wire" lights dim as the battery voltage drops.
http://www.totron.com/led-work-light...led-work-light