ken garchow
Newly Enlightened
- Joined
- Nov 27, 2014
- Messages
- 64
i am wondering when using LED turn signal bulbs what are the pros and cons of resistors vs electronic flasher
thanks
thanks
I'll leave that to our resident expert Virgil to explain."law" that i am breaking?
Except that the DOT doesn't approve anything. Philips is playing games with the regulations because they know those units have differing performance in differing fixtures, hence:i was under the impression that the bulbs i was trying were the first DOT approved LED's per the philips website
Philips
Philips Vision LED lights have been tested with luminaires for specific functions of certain car models, and for these tested luminaires, the beam pattern measured fulfills the requirements as stated in the SAE standards.
If it's Daniel Stern, I recall in my middle distant memory that I'd shared with him my opinion that Philips was playing those same games, and that he had agreed.Ken Garchow
also on the recommendation of a well known automotive lighting consultant
thanks guys, I'm just trying to optimize my trucks safety, function and aesthetics.
i have read a few times that the speed at which a LED lights up in a brake light can save 10 feet of stopping distance.
Defining the legal lighting in the U.S. is the NHTSA.and who is the governing body when it comes to legal lighting?
That depends on a few things. Technically, the NHTSA should have subjected Philips to more scrutiny and perhaps blocked the "introduction into interstate commerce" the product that would tend to "disable a regulated motor vehicle lamp", since the things don't produce 100% compliant results in every lamp they fit.and who enforces the rules?
I take quite a bit of time finding this post to share with those swapping to LED bulbs. (Of course I try to express concern that LEDs do not quite fit the bill as a direct swap in, as of yet, but people will continue). Could the test directions here be stickied for ease of reference? Thanks!