Those lamps must be starved for voltage-- it takes quite a bit of lens degradation to reduce your vehicle's conspicuity. Also, are your position lamps and sidemarker lamps still functioning? Unobscured by push bumpers/brush guards and the like? Or even auxiliary lamps bolted on in such a way that they block view of your position lamps?
All my offroad lights are top of hood up all mounted to the a pillars, and the front bumper is a Ranchhand BTJ071BLR, while it doesnt block all the lights at any given angle and never whole light at once it might be part of the issue, but I could be a motorcycle just as easily, as no matter what I have one unobstructed light from whatever angle. My side marker light setup is 100% stock, 100% no interference there
On a stock 2011 Jeep Wrangler, Chrysler has force fed the h13's halogens with a pulse width modulated square wave, I've heard they only get about 8v in you measure with a meter. I'd say they seem starved, but I'm not a expert in automotive lighting to say if undervolting is to counter better modern reflectors. but these "superior jeep headlamps" cant seem to handle the heat of a voltage starved halogen bulb. and I don't have day time running lights, I'm sure some people had this worse. seems like a recall is needed.
I'm pondering getting some sealed beam units and making a new harness and giving them a non pwm signal. The 7in sealed units will mount up without issues and life in hours isnt as good. but i'd have a new lens every time I swap the bulb(unit), and they are commonly found for around 15$ ea at every local auto parts supplier. the older wrangler tj's used them. I saw a box by sylvania h6024 40w/60w, saying 50 state legal for road use. my h13's are 60w/55w but running under volted is probably cutting 30% of the brightness. some people might have concerns to me making a new wiring harness. I'll just mention I built electrical parts in f35's and osprey's, and even rewired boats(and wiring standards are tougher then rv's which you'll find on the road). Its funny how dropping back to headlights designed 40 years ago might get me better and safer results.
there was another product mentioned a few responses back by vigil i'm going to check that out, it could be a better option, i didn't look at it yet. I suppose anything is better the mounting a few dozen candles to the bumper:candle: .
Bill, I appreciate your input. I have a 16 year old truck with original plastic lenses without a crack, the bulbs have no pwm on it so im getting higher temp changes on the truck. some oem's build quality products. jeep wranglers are not quality products for durability, i'd expect my jeep's lenses to 99% structurally fail within 3 years if unchecked, i'm surprised it doesn't have water ingress yet.
bill, if you a jeep jk around the same age without lens cracking issues, it might make me rethink about oem a little there is the possibility of a bad batch, or chemical exposure. I'll also note my fog lights have the same issue, i'm less worried about them cause now they are protected from road debris by the ranchhand bumper.
:hahaha:"Its a jeep thing"