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Thread: Sealed beam lights

  1. #21
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    Quote Originally Posted by BigJon View Post
    Not only that, but you get better light out of a round headlight.
    Yes, indeed. Year 12 physics. Light output from a reflector. The greatest efficiency is achieved by mounting the light source at the focal point of a parabolic reflector. Also light output increases as the diameter of the reflector is increased.
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  2. #22
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    Quote Originally Posted by Brian Hjelm View Post
    He is looking for a quartz halogen sealed beam not a tungsten-vacuum sealed beam. QH sealed beams were once made by Hella in both 7" & 5 3/4", but are now only listed in their catalogue in 5 3/4". A call to the Hella Techline 1800 061 729 may locate some old stock. I would prefer that all cars went back to round headlights. I was staggered to find the cost of a new light unit for my late Falcon was $290 at the Ford dealer. At the time one could buy a sealed beam at K-mart under $10.
    Is the list number I mentioned in the catalogue, because the one I just pulled out looks like a QH sealed beam? These are readily available. Just rang our mechanic and he has heaps of them this number. Hella do not actually make these, they are actually a Wagner part 7019, made in the US. This may help also, just in a Hella box.
    I would personally upgrade to QH H4s. Easier to get globes than sealed beams. Amazes me Toyota still use them.
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  3. #23
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    Quote Originally Posted by Brian Hjelm View Post
    He is looking for a quartz halogen sealed beam not a tungsten-vacuum sealed beam. QH sealed beams were once made by Hella in both 7" & 5 3/4", but are now only listed in their catalogue in 5 3/4". A call to the Hella Techline 1800 061 729 may locate some old stock. I would prefer that all cars went back to round headlights. I was staggered to find the cost of a new light unit for my late Falcon was $290 at the Ford dealer. At the time one could buy a sealed beam at K-mart under $10.
    I think you hit the nail on the head as to why manufacturers changed from round lights!

    John
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  4. #24
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    Quote Originally Posted by Brian Hjelm View Post
    Yes, indeed. Year 12 physics. Light output from a reflector. The greatest efficiency is achieved by mounting the light source at the focal point of a parabolic reflector. Also light output increases as the diameter of the reflector is increased.
    That is why my driving lights are round and big!


  5. #25
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    G'day Reads90

    There are also 2 different types of 7" round sealed Beam lamps, 2X (conical type beam left dip) and Asymetric type, (that is with the horizontal top cutoff and left flare) all Australian vehicles went to Asymetric about 1980, with left dip. they should be available in both standard Seal Beam, and Helogen types, I would try the usual suspects, Burson, Supercheap, Repco,Autopro, and if the sales person is vague ask for somebody that knows lighting

    cheers

  6. #26
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    Quote Originally Posted by BigJon View Post
    That is why my driving lights are round and big!

    And illegally mounted, for use on public roads. "Driving lights,brackets must not protrude forward from the front face of any bumper or above the top of any bull bar". Modifications-Qld. Transport
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  7. #27
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    They shouldnt be hard to source, crikey when we closed up the wrecking yard I smashed hundreds of them of both types, Wagner you can get, Bosch most likely, Rarespares be a good place as I said earlier every old Ford or Holden ran 7 inch lights, the XC falcon had 7 in Halogens from the factory, I have two of these for my Series one.

  8. #28
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    Quote Originally Posted by Brian Hjelm View Post
    And illegally mounted, for use on public roads. "Driving lights,brackets must not protrude forward from the front face of any bumper or above the top of any bull bar". Modifications-Qld. Transport
    That doesn't look like a public road to me .

    I put my actual safety above the safety of hypothetical pedestrians.

    The rules here are the same. I haven't ever hit a pedestrian, if I do I would imagine the 2.5 tonnes of British 4WD would be of more concern than the 3 kg of driving lights...

    As a general rule I only fit them for night time open road trips. They aren't on there now.

    Happy now?

  9. #29
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    Quote Originally Posted by Brian Hjelm View Post
    And illegally mounted, for use on public roads. "Driving lights,brackets must not protrude forward from the front face of any bumper or above the top of any bull bar". Modifications-Qld. Transport
    Looks to me like an NT plate, not a Qld one!

    John
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  10. #30
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    Quote Originally Posted by Brian Hjelm View Post
    And illegally mounted, for use on public roads. "Driving lights,brackets must not protrude forward from the front face of any bumper or above the top of any bull bar". Modifications-Qld. Transport

    Yeah yeah so what , it illegal , so is doing 65 in a 60 limit , but hey we all do it
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