Can I replace a .04 amp bulb with a .08 amp bulb on an inst. cluster circuit board?

Discussion in 'The Projects Forum' started by toomanywires, Aug 21, 2014.

  1. toomanywires

    Thread Starter New Member

    Aug 21, 2014
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    0
    This is on a GMC instrument cluster circuit board. A few of the bulbs are burnt out, and I want to replace them - a total of about 7 in all. These are a solder on type mini bulb. The original GM bulb is a 2174 that draws .04 amps. I can get Eiko 2182 that draws .08 amp at a local store but I can't find anyone local who has the 2174. I can order the 2174 on line and pay a high shipping charge.

    The 2182 will physically fit the location and I found a reference on line to someone using the 2182 in place of the 2174.

    Can anyone tell me what difference if I use the 2182 .08 amp bulb instead of the 2174 .04 amp bulb? Brighter? Dimmer? Will it overload the circuit board or cause any other problems?

    Any help appreciated.
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,998
    745
    higher current will be brighter and run warmer, if the power supply will take the extra current,and won't burn the display go for it.
     
  3. DickCappels

    Moderator

    Aug 21, 2008
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    You might get away with it, but doing so is not a brilliant solution (did you see the pun?). Engineers (usually) take a huge amount of care in specifying components. Changing to the higher current bulb would likely be to downgrade some part of the design at best, and could result in premature failure.
     
  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    Personally I'd consider using a LED (plus current-limiting resistor) instead of the bulb.
    Have you read the Terms of Service of this site regarding automotive modifications? This thread may be closed by the mods.
     
  5. wayneh

    Expert

    Sep 9, 2010
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    I'd count on it. ;)
     
  6. #12

    Expert

    Nov 30, 2010
    16,318
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    Alec had a great idea. The dimmer would still work properly with the LEDs while the double current bulbs might quickly burn it out.
     
  7. Metalmann

    Active Member

    Dec 8, 2012
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    If I were you, I'd go all LED.:


    http://www.superbrightleds.com/cat/led-vehicle-replacement-bulbs/


    You won't live long enough, to ever have to change lights again.;):cool::D
     
  8. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    The higher current will run hotter (if the bulb is approximately the same size) and may burn or melt the back panel.
     
  9. GopherT

    AAC Fanatic!

    Nov 23, 2012
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    Try this place. I think they have a $10 flat shipping but bulbs are $0.27 each.
    10 for $12.70 with shipping.
     
  10. djsfantasi

    AAC Fanatic!

    Apr 11, 2010
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    Was there supposed to be a link?
     
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