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Thread: What are the brightest Halogen H7's available?

  
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    What are the brightest Halogen H7's available?

    Ive got some Bluevisions which are quite good but ive read about people buying some kind of 'Rally' spec halogen bulbs which are technically illegal, but instead of 55w like most they are 105w, so like double the brightness of regular halogens.
    Is this true?

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    you can get rally / off road h7's yer, Ring do a good set of em but yes are illegal as they are stupidly bright

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    Quote Originally Posted by scrim View Post
    you can get rally / off road h7's yer, Ring do a good set of em but yes are illegal as they are stupidly bright
    I bet they burn out quickly as well lol. WOuld like pics of them if anyone has any.

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    It is a common misconception that the higher the amount of K the brighter the bulb, which isn't true this is merely stating the position of the element in relation to the reflector in the casing, just thought i would point this out so a 35W 6000K is actually Brighter than a 35W 10000K HTH
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    100w bulbs will burn your reflectors as they get twice as hot.
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    Utter toss.

    K relates to the colour temperature (in Kelvin) of the bulb, nothing more nothing less. Lower K will give a yellow light and higher K give a bluey light.

    It's got sod all to do with the position of the filament. For a bulb to work correctly (ie produce the correct beam pattern) the filament has to be at the focal point of the reflector. if it's a few mill out either way the beam becomes either converged or diverged.

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    Quote Originally Posted by JK88 View Post
    100w bulbs will burn your reflectors as they get twice as hot.
    I've had 100watt bulbs in for a few months now, no melting observed, never been flashed by other road users. Checked the brightness myself and they are not glaringly bright, but A LOT better than the std 55w bulbs.

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    /\/\ Me too. I've used 100w in all my cars over the last 25+ years and never a had burnt reflector. I've even used 150's without and problems

    jran - you shouldn't get flashed as long as the beams are aimed correctly as the beam area is governed by the reflector, not the bulb. So all your doing is lighting up the same area brighter

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    Quote Originally Posted by Ffoeg View Post
    Utter toss.

    K relates to the colour temperature (in Kelvin) of the bulb, nothing more nothing less. Lower K will give a yellow light and higher K give a bluey light.
    When color temperature rises lumen output decreases.

    4300K 3100 lm
    5000K 3000 lm
    6000K 2800 lm
    8000K 2500 lm
    10000K 2300 lm
    12000K 2100 lm
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    My point was that's it's got nothing to do with the position of the filament.

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