MinisterofDOOM wrote:DRLs, let's break it down:
Positives:
Might be easier to see cars in extremely rare occasions where visibility is partially limited but there's no reason to run normal headlights. Now think about those conditions. Ever happened to you? Nope, me either.
Actually, DRL's make cars more visible simply because it creates a distinguishing visual feature. This not only helps a person see the vehicle better, but also distinguishes it from objects in the background. It need not be limited to inclement visibility nor should we consider that since accidents due to a person not seeing another car coming is not limited to situations of limited visibility. There is a reason why motorcycles are also more visible with lights on...
MinisterofDOOM wrote:Negatives:
Ugly
Extra cost (especially the half-a** design that run main headlamps at half wattage)
Added maintenance
More electronics to go wrong
More lamps to change
I can't argue with the subjective aspect (appearance) and I would agree that some cars are indeed uglier with DRLs.
Extra cost - sure. But many would find value in an extra margin of safety. And systems that use the headlights at lower wattage as DRLs would be cheaper to implement as there would only be a minor difference in the electronics but share hardware components.
I'm not so sure changing an extra pair of bulbs is going to add that much more maintenance to a vehicle.
MinisterofDOOM wrote:And, like TSD said, the problem isn't the brightness, it's that 99% of drivers are too ignorant/lazy/stupid to ensure their lights are adjusted correctly. This goes for people with OEM HIDs and halogens as well; by no means is it limited to aftermarket HID installs. I'd wager a fair sum that the morons ranting on that webpage have NEVER EVER checked, adjusted, or even THOUGHT about their headlight adjustment.
While I would agree that most people don't check their light adjustments, most people probably have little need to. Lights don't tend to go out of adjustment by themselves. Typically, maladjustment is a result of damage.