In Reply to: Re: euro ellipsoids posted by Peter Warton on November 21, 2000 at 19:02:56:
Ellipsoids on US cars, in stock form, are not E-spec, they're DOT spec. Take a look at the bucket, if you see a "DOT" molded into the glass then it's not E-spec. E-spec lights are illegal in some states in the US, so I don't see how BMW could use the E-spec pattern on US ellipsoids. Now clearly the ellipsoid beam patter is different than non-ellipsoid, but it isn't E-code.
Thats my understanding anyway - I'll be sure to take before and after photos of the beam pattern when I put the Euro units in my car next month.
Thanks for the pointer.
However, the comparison at the top of the page doesn't apply to ellipsoids -- it compares e-code H-4s with old-school sealed beam lamps. I agree wholeheartedly with the facts in their comparison and have been using H-4s for years in my previous cars.
I think the ellipsoids in my US spec e34 already are an e-code style beam pattern and bulb. (FWIW: the ellipsoids use the "step" rather than a 15 deg slope referenced in the website. The step pattern was, I believe, developed by Cibie in order to ease the glare in truck mirrors because it doesn't rise as far on the sides.)
So, I'm not convinced that there is any difference for e-code ellipsoids other than possibly the bulb wattage and the addition of city lights to the lamp housing. Personally, I wish the conversion to e-spec H4s was simple.
Thanks...wishing for more light on the subject...