Anyone know what bulb type this is ?

Discussion in 'Tech/Mech General' started by Jaws, Apr 30, 2016.

  1. Jaws

    Jaws Funster Life Member

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    Wanna know what holder type it is.. You know, like an H3 H4 or whatever..

    It is 15mm across the base, the flange is ABOUT 25mm across and ABOUT 45 mm total length

    P1020004.jpg
     
  2. Stealaway

    Stealaway Funster

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    How is it held in.
     
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  3. magicsurfbus

    magicsurfbus Funster

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    Type not stamped on the barrel next to the numbers visible in the pic? (Magnifying glass required)
     
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  4. pappajohn

    pappajohn Funster Life Member

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    H7

    Not. :doh:
     
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  5. pappajohn

    pappajohn Funster Life Member

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    Whats it off ?
     
  6. Lenny HB

    Lenny HB Funster

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    That is a weird one, what is it out off?
     
  7. maxi77

    maxi77 Funster

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    If it is 15mm for the main body you may be able to make a replacement out of a ba15s bulb and a suitable penny washer
     
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  8. Tootles

    Tootles Funster

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    It looks like an old style spotlight bulb mate, the like of which came with Raydot spotlights. The hole in the reflector held the plate, you inserted the bulb against the sprung center contact, and twisted to lock.
     
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  9. funflair

    funflair Funster Life Member

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    Last edited: Apr 30, 2016
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  10. NickNic

    NickNic Funster Life Member

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    It's out of a torch isn't it?
     
  11. Tootles

    Tootles Funster

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    Its called a 'pre-focused single filament automotive bulb'
    bulb.jpg

    This is the bumph for the double filament bulb......


    Pre-focus Double Filament.
    This type of bulbs are used only for headlights with both the filaments accurately positioned relative to the reflector, both along the principal axis and offset from it in the correct plane. To achieve this positioning a notched flange is formed around the metal cap. When the bulb is installed into the holder, the flange flushes against a reference shoulder due to which the main filament is precisely on the focal point of the reflector. Consequently, the notch is located by a projection which sets the bulb’s angular position so that the dipped-beam filament is directly over the focal point. The normal ratings for these main/dip bulbs are 45/40, 50/40 and 55/40

    The single filament was used for spot and fog lights, and side marker front lights, but mostly in 6 volt.
     
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  12. Jaws

    Jaws Funster Life Member

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    place in the holder, then held in by a cap that is pushed down and twisted

    No mate.. Just a couple of Chinese symbols !

    The Beast ( AKA the tandem mobility scoot I have just built..

    Mobility scooter

    I could use one but it would mean a lot of modification !

    Correct

    Yep.. spot on but in this case 18w 24v



    So why do I need to know ? Cos I wanna replace the buggers with LED types..

    Managed to find replacements for all the other bulbs on the thing so will not start searching for the T6 type (y)
     
  13. Jaws

    Jaws Funster Life Member

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    How odd !
    The T6 automotive bulb is coming up as a festoon type.. So I tried the a3603 number and that is only coming up with twin contacter option .. and nowt in the LED options..

    Looks like I might have to get busy and graft a different holder to the light units
     
  14. Stealaway

    Stealaway Funster

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  15. tonyidle

    tonyidle Funster

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    I've only ever seen that fitment on early Japanese motorcycles. I don't think it will appear on any standard list.
     
  16. f6c

    f6c Funster

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    Its a Tulip Bulb:whistle:
     
  17. Jaws

    Jaws Funster Life Member

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    Sadly none suitable.. BUT
    You have jogged my memory !
    I have about 40+ white stop and tail LED's
    Methinks it is time to take the lens off the headlights ( A simple task involving very hot water ;) ) and fit the bulbs inside the unit, hold it all in place with the eternally useful glue gun, and then stick the lenses back on !
     
  18. Jaws

    Jaws Funster Life Member

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    Light units came apart real easy !!

    I have ordered a pair of standard 1156 types .. They are sold as turn signal replacements so will be brighter ( slightly and probably not really noticeable ) than the original incandescent 18w rated ones

    [​IMG]


    I will simply push them in from the front, glue them in place and solder a couple of wires straight to them ..
    Nice and easy with a total cost of 99p ( inc postage from China for goodness sake LOL !! )
     
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