Quote:
Originally Posted by Behemoth I don't know why but I have a gut feel though that your installer installed the lights upside down. In case of H4 bulbs there is a correct way upside and downside too. |
Behemoth,
Salute to you, sir!
Your gut feel was bang on! They had indeed installed the Osram H4 LEDs upside down in our Honda Jazz VX CVT, which gave me a nightmare yesterday with the low beam light focusing "in the sky", totally missing the road. Got the Halogens out and got the LEDs installed in the
correct position.
Once it was dark, I stood facing our car in our parking, at about 12-15 feet distance. My wife operated low + high beam with all leveling positions turn by turn. The high beam was blinding indeed, whereas the low beam was perfectly focused on the road, and not disturbing at all.
Having satisfied myself thus (that the low beam would not inconvenience anyone on the road, or any oncoming drivers), I took the car for the exact same night drive as yesterday's. I chose the same time, same road conditions, same roads (a mix of 2-3 km highway and some smooth city roads + some low light service roads with high number of potholes). Yesterday (with the wrong placement of Osram LED), I was terrified and had to slow down so as to not miss (worse - hit!) objects. Today there was a world of difference. It illuminated the roads and other objects very well, and showed up the potholes well in advance, and more importantly, with good clarity and focus. Everything else being almost equal, I was able to complete the drive in 75% time compared to yesterday, thanks to the correct illumination and focus.
High beam is almost of no use to "see the roads" with this setup. But there was one practical use: I could respond to some vehicles trying to bully us (coming from opposite end with high beams), just by flashing mine, asking them to tone down! On several junctions, there were many bikers eager to disrespect the signal and squeeze in vertically while our signal was green and theirs was red, even on the wrong sides at times. A simple(!) less-than-1 second of high beam flash of the car was enough to make them wait! I wish I had similar high beam lights installed at the back of the car to respond to vehicles bullying us from behind (just joking!

)
One issue persists however, with an oncoming car with bright yellow lights, I don't have my (yellow light) weapon to cut these off, as a result they looked a little too bright for me to handle.
But in any case, for now, I have decided to drive more with these Osram H4 LEDs, hopefully until monsoon commences, which is when I intend to religiously switch to (yellow) halogens. One express way trip in the dark (and without street lights) would exactly reveal how things are!
Many thanks once again for your guidance. I have cancelled the Amazon return for now.
I just wish Osram comes with even better LEDs, and by that I mean lower Kalvin (not exceeding 3700K or 4300K max, as current 6000K has no yellowness) and higher wattage (e.g. 35 Watts instead of 25 Watts) corresponding to more lumens. These would still be well within the 55/60W limit, and we - all insignificant creatures with a reflector headlamp setup - would truly have an all-season solution.
To everyone new to installing H4 headlights (both halogen and LED variants), please remember to install them in the right position (fortunately there're only 2 options, up-side-up [correct] and up-side-down [incorrect]. There is no other angle possible). An incorrect installation can result in catastrophic consequences.
Some very good videos to understand this clearly:
and