The Ultimate Headlight Upgrade vs Philips LED headlights | Page 2

08, Sep. 2025

 

The Ultimate Headlight Upgrade vs Philips LED headlights | Page 2

Both bulbs are designed to angle light up to the left, and down to the right, so swapping the bulbs left to right has no effect. It is actually even evident on the box showing the beam pattern in the original post.

Philips claims 150% more light on the road, maybe it is poorly translated but what I think they mean is 50% more light over stock, or maybe 150% over other LEDs that are not designed for halogen reflectors.

If you look at the lux ratings I took in this thread, I measured the Philips output at 474 lux. In the Ultimate headlight upgrade thread, I measured the stock bulbs at 290 lux. So based on my measurements the Philips are about a 1.6x or 60% improvement over stock. However, note that using a lux meter to measure output is not a perfect science, while it will capture the highest beam intensity, it does not account for in the beam pattern being consistently full. However the Philips had a much more consistent beam pattern than the Opt7s.
here is another LED h4 im considering trying, these have an adjustable angle so you can adjust driver and passenger sides to your liking, also these are using similar Philips chips (or better) than x treme ultinon model, there is a side by side comparison in the ebay ad, and are only $36 a pair if they don't work out im not in the hole $200 and unhappy, only $36 in the hole and unhappy.http://www.ebay.com/itm/Pair-160W-1...baabde5&pid=&rk=3&rkt=6&sd=
I see you sold your set after the test... Wasn't good enough I am assuming.
Many people have them and like them. I don't mind swapping my bulbs when they burn and prefer the greater output.

The Philips LEDs are rated at 5,000 hrs at 23w, lumen for $250.
Those knock offs claim 50,000 hrs (but then contradict with 30,000hrs) at 80w, lumen for $37.

10x the life, at 4x the power, with 6.4x the output for 14% of the price.

I doubt those are legit Philips LEDs, or that their performance claims are legit. I've not yet seen an 55w LED kit that is passively cooled, much less an 80w LED that doesn't need fans.

And while the knock off cut offs are shown for right hand drive beam cut offs, if you "rotate" the LED in the headlight assembly to try and correct it, you are likely get some weird undesirable optics from hitting significantly different areas of the reflector housing.

I'd put the money toward the Philips.
I've tried to read up on all of your info. As an engineer myself, I love reading it!

do you plan to test Hikari brand LED bulbs? they *seem* to have a very good pattern from the reviews and posts I've seen. I tend to go into pictures/videos posted ready to roast for putting LED in a reflector but everything I have seen from the Hikari's is hard to argue... from a 3rd person position. I'd love to see some first trust worthy first hand info.

I am running KC Gravity LED aux/fog lights and HID projector low beams and trying to find a color matching and high performing solution for the yellow sheep of the lighting family, my high beam projectors.
I’ve tested the latest Hikari H11 in 3rd Gen and the previous Gen Hikari H4 in 2nd Gen. LEDs shouldn’t be run in a halogen reflector like 2nd Gens as they will cause significant blinding glare, but what isn’t talked about as much is how badly they lack focus and distance projection. Diode Dynamics is widely recognized as building some of the best designed LEDs, check out this comparison in my 3rd Gen thread, since 3rd gens run projectors glare isn’t as much of an issue:
https://www.tacomaworld.com/threads...ector-headlights./page-65#post-

As you can see, glare aside, the LED is flawed in projection.

Just for some fun apples to oranges:
Tested at 18’ (benefits Hikari)
Not tested at higher voltage to simulate harness (benifits Hikari)
Not run at even higher voltage to simulate the voltage booster (benifits Hikari)

2nd Gen H4 vs 3rd Gen Hikari:

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