Originally Posted by
KDW4Him
Bummer, a quick search did not yield the sites that talked about lumens having an energy conversion factor. I am chalking those up to web misinformation and not a valid lumens issue.
In your explanation we find why LED's don't appear brighter on our cars than the H7. The way the headlight focuses the beam. We don't know the candlepower spec of the H7 on a Crossfire nor do we the LED and the only way for the LED to appear brighter down the road is to focus more lumens down the road. Per 180's post about focal point in the parabola and knowing the Crossfire headlight is made for the H7 bulb so if the LED was not made to exactly match the H7's light emitting location the LED cannot focus the lumens properly to appear brighter. The bulbs would have to match exactly in the location of the light source.
Do you have a side by side comparison of the H7 and an LED you speak of?
These show the point of light being very different...
https://d114hh0cykhyb0.cloudfront.ne...h7-w36-drl.jpg
Great point as well as the other references! I have found the more ambiguous advertisers and retailers are about their products (remember they are trying to part you of your monies) the more likely you get so mixed up, that you buy their product because of 'this or that' specification. I also find that after the sale, (sometimes) people are likely to 'justify' their purchases even if they are not as happy with the item as they thought they would be (as in not willing to admit they may have been misled or ripped off). In a perfect world there would be a standard of specifications. I tend to see a reason why there isn't standard specs in the many claims of products, to help deceive people to buy. I do know that as newer cars come out (or people 'upgrade' without regard to ride height, I get blinded by oncoming traffic. All these colors of light, coupled with lack of care to aim (based on ride height/load in vehicle), causes a night time driving safety hazard.