I have a headlight question related to brightness claims by the same
MFG'er.

The headlights are 4" X 6" and sealed beam halogens that appear on
several types of cars. The lens says "Sylvania Performance" on one and
the other says "Sylvania Ultravision".

The part numbers are H6054XV and the other type says H6054ST.
Has anyone had experience with these bulbs and can tell me which
will give me a longer, greater distance range of light?

This is not a discussion about HID's or some other light setup being better. If you want to discuss HID's you might try this thread: https://www.tamparacing.com/forums/g...-question.html
I'm looking for info from knowledgeable people to clear up the MFG'er's
claims of brightness of these particular bulbs. Thanks.-Bob

 

between those two, you're really splitting hairs.

The thing to remember is that, and the fine print verifies this, they are comparing their brand new bulbs to the bulbs they are replacing. They even state that over the typical lifespan of a bulb, you loose at least 20% of the light output. So they are comparing a 100% bulb to an old, 80% bulb. And that also doesn't account for the +/-15% error that is allowed on those specs. And since they aren't stating that, the specific bulb in that package is brighter by "X"%, they can use a bulb that is +15% and compare it to that old, worn out 80% bulb. So by all rights, the marketing claims are really based on a bulb at 115% of spec, versus an old, worn out bulb that is at best at 80%.
So take the labeling with a grain of salt.

As for those two bulbs in particular. I have used the "ultravision" before. I was satisfied with it, but I again, was comparing it to a bulb that was at least 5 years old, and the other was burnt out totally, so of course the light output was the same.
Usually, what I'll do when it comes to picking between two bulbs is to buy both of them, install one on one side, and the other on the other side and pick the one that I like the best that way.
Maybe go out to a dark road, and cover each side up with a blanket to really compare the light output.
the problem is, with sealed beam bulbs, the differences are going to be minor. The light output on this kind of bulb just isn't very good, so you aren't going to be able to throw any more usable light any further.
HID's are able to get usable light a bit further down the road because the projector and lens focuses the light. With a sealed beam style light, the usable light is kind of reflected in the general direction it needs to be in, and much of the light is scattered all around, and effectively "lost"

So to really gain anything as far as light output goes, you'd have to look to alternative options. Even just stepping up to a halogen bulb would give you a lot more light to work with.

 

Both bulbs are halogen sealed beams.
Thanks for your thoughts.-Bob

 

sorry, wasn't exactly clear.

I mean this kind of bulb.



Interesting tib bit.
The 9006 is a low beam bulb
the 9005 is a high beam bulb.

The plugs are very similar. Basically, one is the male side and the other is more of the female side of the same plug design. Very very easy to modify and make the 9005 fit into the 9006 chassis plug. And the headlight housing socket is very similar too. Only have to trim a little bit off of one of the tabs to get it to fit properly.
The 9005 is technically 10 watts more than the 9006, but it is a common swap, and I personally have yet to see any adverse effects in the year I have been running this set up.

9006
55 watt
~1,000 lumens

9005
65 watt
~1,700

Very easy way to almost double the light output.

 

While you have a reply (post #4) related to individual bulbs that plug into a
composite plastic headlight, my question was related to the 4" X 6" complete
headlight that has three male prongs on the back and has the Halogen bulb
within a sealed beam complete headlight and the part numbers mentioned
in my post #1.

Your info is not wasted, though, probably someone reading this thread can
still use your info for a bulb-only installation. Thanks.-Bob

 

as simple as that is, i never thought about that.. good post