3 ms·
You mean DRL's? They lead to a significant reduction in crash rate - and since much of a car's carbon impact is tied up in the manufacturing of the car, that is
by Johnny555 7y ago
You mean DRL's? They lead to a significant reduction in crash rate - and since much of a car's carbon impact is tied up in the manufacturing of the car, that is likely a far greater impact than running the DRL's all day.
Plus, with LED DRL's becoming more common, the power drain is much less significant than the old incandescent lights. My old car ran the 55W headlights at around 40W each for DRL's. My new car has a DRL LED module that uses around 3W.
- Marsymars 7y agoHow'd you figure out the draw from your various headlights? Bulb specs?
- Johnny555 7y agoI measured it once, kept reading about how OEM wiring was under spec'ed and led to voltage drop at the headlight, so I measured the voltage + current, and got a bit over the 55W rating for the regular headlight. After the first measurement I thought I proved that the wiring was seriously undervolting the headlights when I only measured around 10V (and just under 40W), then I realized that was the DRL's. To find the 3W spec for the LED DRLs on my current car, I just looked up the specs on an replacement module - I don't crawl around the hood with a multimeter anymore, too much expensive stuff in the way. (the reason I measured in the first place was because I wanted brighter headlights since I was doing a lot of night driving in mountain roads, and thought that replacing the wiring harness would be an easy upgrade. I ended up adding a set of driving lights which looked kind of dorky, but worked great)
- mixmastamyk 7y agoNo, the headlights were unable to be turned off on a friend’s old carolla. Was a while ago though.
- Johnny555 7y agoThat sounds like DRLs... In some cars they use the headlights at reduced power as DRLs.