Low beam (dipped beam, passing beam, meeting beam) headlamps provide a distribution of light designed to provide adequate forward and lateral illumination with limits on light directed towards the eyes of other road users, to control glare. This beam is intended for use whenever other vehicles are present ahead. The international ECE Regulations for filament headlamps and for high-intensity discharge headlamps specify a beam with a sharp, asymmetric cutoff preventing significant amounts of light from being cast into the eyes of drivers of preceding or oncoming cars. Control of glare is less strict in the North American SAE beam standard contained in FMVSS / CMVSS 108.
 High beam
ECE high/main beam
Symmetrical high beam illumination of road surface
High beam (main beam, driving beam, full beam) headlamps provide a bright, centre-weighted distribution of light with no particular control of light directed towards other road users' eyes. As such, they are only suitable for use when alone on the road, as the glare they produce will dazzle other drivers. International ECE Regulations permit higher-intensity high-beam headlamps than are allowed under North American regulations.
 Compatibility with traffic directionality
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.
I have them and they work very well for the price. I also like that they do not have a plastic lense on them. Mine are the DOT verisons and also have a nice sharp cutoff.
With my stock lights I could not tell they were on unless it was really dark and no other light out. Amazing they can leave the factory like that.
Hella E-codes are very nice, especially with good bulbs. I've had mine since 2005 and have been pleased, especially with the sharp cutoff - I can pull up on someone at night and NO light comes through their rear window, it's all on the back edge of their trunk lid. rallylights.com has these at a good price.
The E-code lamps from Cibie are also extremely good based upon the reports and nighttime illumination pictures I've seen of those, though I haven't run those. daniel stern lighting is a good source for the Cibie lamps.
If you do the light upgrade, use high-quality bulbs, not whiz-bang "super white" or "looks blue" bulbs, which rather defeat the purpose of upgrading your reflector. Daniel Stern's site has a brief write-up on the subject that is probably worth looking at before you buy overpriced-but-crappy "premium" bulbs...
So far, I have the factory lights but put hellas on as fog lights, i now run them full time for better vision, they are bumper mounted. Really saw the difference on a rainy night in the mountains last week. Could have used a candle OEM's then lit up the Hella's. I now call them driving lights not fog lights.
You're quite welcome. Glad to be a contributing member here. Note my Hella's were the DOT approved lights and NOT the E-codes. Lot's of guys like the E-codes for various reasons, but I have local police to deal with.
Hope you enjoy your new lights, which ever version you choose.
__________________ One day, you will be just a memory for some people. Do your best to be the good one.