I've had the Truck-Lite round LED headlamps in my JK for awhile now and I really like them. So much so that I bought a 5"x7" pair for my MJ. These are the GE Nighthawk brand, and I found them on Ebay for a decent price. The below pictures are comparisons of the HI and LO beam patterns between Hella E-code housings with 55W/100W H4 bulbs and a relay harness, and the GE Nighthawk LED headlamps with the relay harness.
Here they are installed. I like how they look:
E-code H4 LO Beam:
GE LED LO Beam:
E-code H4 HI Beam:
GE LED HI Beam:
There's not a dramatic difference between the two, and it's difficult to take pics like these at night with long exposure times, but I much prefer the LEDs for a few reasons.
1. Light Color: The LEDs are a lot closer to daylight than the H4s yellow-ish color. Much more restful to my tired old eyes.
2. Amp Draw: For the same lumen intensity, the LEDs draw about 25% of the amps the H4s draw and about 33% of the amps of a stock sealed beams. Although I kept my relay harness in, it's really not needed.
3. Expected Life Span: LEDS = 15000hrs, H4s = 150hrs
4. Lumen Output: Low beam is about the same between the two, but high beam seems is best on the LEDs. It seems to get down the road farther than the H4s. I can tell by the pics I need to adjust the LEDs up a bit more.
A few factoids comparing the GE LED headlamp vs. a similar 55W/100W H4 halogen bulb w. 1005 (LO) / 2400 (HI) lumens output @ 12.8VDC nominal voltage: LED H4 Low Beam Amp Draw: 1.5A 4.6A High Beam Amp Draw: 2.9A 8.3A Average Life Span: 15000hrs 150hrs