That heat is the primary reason I have been making the change to LED. They aren't all expensive, plenty of low-cost options are available on EBay and Amazon. Just be really careful about the color temperature on them so you get the kind of light you like. Many of the readily available and more affordable options are too blue for my taste, so I look for warm white in the 2500K-3000K range. I would also go higher on the lumens than you think you need, it seems the LED puts out less light at the same lumen rating.
2014 Jay Flight 28 BHBE
2015 RAM 2500 6.4L HEMI, Tradesman 4x4, 3.73
Blue Ox SwayPro (BXW 1503)
Upgraded from an REI internal frame backpack and a Eureka 1/2 dome tent!