66 dart LED prototype working for now

slantsixdan said
Your meter readings give cause for concern; the bright/dim intensity ratios aren't anywhere near sufficient. Only a 49% difference axially for the original bulb, and only a 30% difference axially with the LEDs. I'd be inclined to try to rule out a problem with your measuring method/equipment as a first step, because the original lamps did comply with the 5:1 and 3:1 ratios. You may need to tweak your driver circuit to reduce the intensity in dim (tail) mode.

ok will do,umm 5:1 and 3:1 (i have the 3:1 down pat but need clarification on the 5:1)
3:1 = differential between running light and turn/brake intensity
5:1 = ??? difference between tail and turn/brake on the center/main viewing angle(directly behind or offset to a small degree up/down, left/right) yes/no??

I thought the tails were quite bright in regular running mode but chalked it up to my old tired eyes but left the configuration that way until I was sure of what I was doing. I can set the dim ratio down real easy by redoing the resistor packs in the run mode. hopefully I can get that light meter thingy from the photographer again and do a comparison. plus have him show me how it works.(wayyyy to many buttons on that thing)
both front and rear are too bright in normal run mode then.
the front's will be harder to change but easier to do after I do get the change done and I have to use better Leds. or my new PWM controller comes in. I think that the stock readings were skewed a little since the inner lights stay on brighter that the outboard light untill you hit the brakes or turn. then they match up in brightnessI'll disable the inboard light and just test outboard light next time .

BTW that the only reason I wanted to go to led's (other than the cool factor) was to get both/all lights to do brake/turn and tails