Spot lamps

Discussion in 'Mech Tech' started by Tilly, Dec 3, 2018.

  1. Brought a pair of these little beauties but without any wiring diagram.

    [​IMG]

    There are 3 wires coming from the rear of the unit and when i opened them up they are really a 60 watt sealed beam headlight unit, with what would seem to be a high low beam so I am assuming the three wires are High Beam Low beam and Earth not as you would expect in a spot / fog lamp usually two wires bulb live and earth return.
    Given the wattage 60, it just seems strange to wire a spot lamp with high an low beam to be on at the same time, if this is the case I believe it would have to be fed via two relays to carry the load ?
    Does anyone have similar units fitted? if son how did you wire them? or do I wire them so I am using just one beam at a time it just seems strange
     
  2. 77 Westy

    77 Westy Supporter

    If it truly is a sealed beam and it’s yellow and it’s covered with a stone guard it won’t produce much useful light and if it’s two 30watt filaments making 60watt you’ll definitely need both of them working. It’s not an old 6v motorcycle headlamp is it?
     
    snotty likes this.
  3. The ribs on the lens might mean it’s a fog light, not a spot. Most odd.
     
  4. Where did you buy them from?
     
    Tilly likes this.
  5. I got them from Cool Air I have spoken to them and they have spoken to the maker,s they say to just connect the low beam wiring and run them that way.
    Yes I did buy them as a fog and I agree that the ribs suggest a fog light beam pattern i am just a bit confused with the use of a sealed beam unit and three wires to connect I may just jury rig them to look at the beams before I fit them.
     
  6. no not an old motor cycle lamp i did buy them as Fog lamps, I bought some Hella fog lamps before these from a supplier on a well known web site and sent them back as they were a clear lens and marked Spot lamps had an interesting discussion with them about beam patterns and diffused beams but they refunded in the end.
    Maybe when I wire them in they will have a flat beam and I would imagine that each filament rating is probably 55 - 60 watts not a combined wattage. the resistance amps from a combined wattage would work out very different when you have what is essentially 2 elements wired in parallel at least one filament will only draw about 5 amps through a relay
     
    Last edited: Dec 3, 2018
    snotty likes this.
  7. The important thing is if you have fog lamps, leave them on all the time:mad:
    Sorry pet peeve.
     
  8. mine too hate the boy racers that think it looks cool, so for you I will try to be good and switch them off when I can see over 500 meters on a clear sunny day ;)
     
    Surfari and CollyP like this.
  9. Had a look on the Coolair site. Those things are...odd. Sealed beam will likely mean if the filament goes, they're scrap :(. I'd send them back and invest in a pair of Hella Comets...
     
  10. mikedjames

    mikedjames Supporter

    30 watts is 2.5 amps.
    So a single 16A relay will work for two pairs of 30 watt bulbs.

    Regard them more as period bling than really useful.

    Its annoying but I find my front fogs best for following the dark edge of country roads at night when there is oncoming traffic, which is blinding me so I blind them back which is not appreciated.
     
  11. 30 watts is 2.5 amps.
    So a single 16A relay will work for two pairs of 30 watt bulbs.

    Regard them more as period bling than really

    I agree but each element is 60 watt so 5 amps is the drawn current a 16 amp relay will still cover it, they probably are more bling but they do look good
     
    Valveandy likes this.
  12. If one filament fails I will just wire in the other one
     

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