I've had some test bench and night-driving time with the Philips H4 retrofit bulb in a selection of various headlamps. It's not a universal fits-in-all/works-in-all drop-in, but it works surprisingly well in some headlamps and is definitely the best product of its type for the time being. I can't say much more right now. Pretty much everything in
this thread applies.
In the specifications PDF it stated that the
low beam is 1000 Lumens and high beam is 1250 Lumens...( +- 15%).
So my obvious question is do they actually
light the road better / brighter compared to
a similar rated Halogen assuming the Housing is working well for the LED ?
Not a scientific question ...so asking subjectively...in MOST of the Halogen Housings - did you see better at night with these ...and perhaps the Lumen Rating is conservative...
They say 150% which should beat their Plus 130 Bulbs and POSSIBLY there is a wider " hot spot" in the Beam compared to Phillips plus 130% Halogens ?
Personally I would like to see 1600 and 2000 Lumens with a nice cutoff that other Traffic ( oncoming)would barely notice the added brightness.
EDIT - Odd but Xenon Depot who sells these at about $ 269.00 maybe a 20% Discount ..
HAS THESE SPECIFIED at 2400 Lumens on Low Beam and 3200 Lumens High Beam ?¿ ?
But if you say it created better visibility than any Halogen you have seen up to 70 watts - I will believe you.
Thanks.