(Topic ID: 219431)

LED's vs Incandescent bulbs -- Heat difference quantified?


By JimWilks

1 year ago



Topic Stats

  • 12 posts
  • 11 Pinsiders participating
  • Latest reply 43 days ago by slochar
  • Topic is favorited by 2 Pinsiders

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    #1 1 year ago

    I have a reasonable collection of pins, currently 60 games.

    The vast majority of them are running #44 incandescent bulbs. Assuming each game has 50 bulbs on at any given time, that's 3000 bulbs on. The #44 data sheet says that each bulb draws 150mA at 6.3V. That's 945mW per bulb or 2.84 kW of power. I have no idea how much of that goes to light and how much to heat.

    I'm wondering what "price" I am paying for that heat that I have to run air conditioning to cool. Even in the dead of winter, I must cool my game room. Anyone have any further facts to shed on this?

    Ultimately, I'm looking to determine the ROI (Return On Investment) of a wholesale LED conversion of my games.

    #2 1 year ago

    Simply led the GI's. Lower investment, biggest return.

    #3 1 year ago

    Have you been able to find the amperage of any of these leds?

    Quoted from Jjsmooth:

    Simply led the GI's. Lower investment, biggest return.

    Even gi is more than 50 bulbs.

    #4 1 year ago

    According to Wikipedia “Of the power consumed by typical incandescent light bulbs, 95% or more is converted into heat rather than visible light.”
    Page located here: https://en.m.wikipedia.org/wiki/Incandescent_light_bulb

    That’s a great deal of heat taken cumulatively.

    #5 1 year ago

    I did some power monitoring on some of my pinball machines, both incandescent lamps and LED lamps. See here:

    https://pinside.com/pinball/forum/topic/power-monitoring-on-various-pinball-machines#post-3943326

    #6 1 year ago
    Quoted from Phat_Jay:

    According to Wikipedia “Of the power consumed by typical incandescent light bulbs, 95% or more is converted into heat rather than visible light.”
    Page located here: https://en.m.wikipedia.org/wiki/Incandescent_light_bulb
    That’s a great deal of heat taken cumulatively.

    I can change Wikipedia to state a different figure if that would help......

    #7 1 year ago
    Quoted from JimWilks:

    I'm wondering what "price" I am paying for that heat that I have to run air conditioning to cool. Even in the dead of winter, I must cool my game room. Anyone have any further facts to shed on this?

    I doubt there would be a huge different with ambient heat in the room with a small number of games. With a larger number of games, there might be a small difference. The thing is that bulbs aren't the only components generating heat. The size of the room would also be a factor.

    The main benefit is reducing the heat inside the game to prevent plastics, inserts, and backglasses from succumbing to damage (warping, flaking, and burning), and reducing the amperage draw, which helps prevent burn damage on circuits and wiring (especially in WPC games).

    1SMD/4SMD bulbs from comet are $0.69 each, $16.25 for 25 ($0.65/ea), and $59 for 100 ($0.59)

    4 months later
    #8 1 year ago

    OP, what was your final decision: to LED or not to LED?

    I prefer the look of incandescents. So, I have switched all of the 44 bulbs to 47s and all the 555's to 159's to cut down on the heat. The 47's and 159's are supposed to be a little dimmer, but they are completely fine for me.

    11 months later
    #9 43 days ago
    Quoted from kevmad:

    OP, what was your final decision: to LED or not to LED?

    I've started the process to LED all games. It will be a work in progress over a couple of years.

    #10 43 days ago

    I not long ago started the process of un LEDing all games.

    I'll take pleasing to the eyes over a worrying about a little heat anyday.

    They really don't all have to be on at the same time anyway.

    #11 43 days ago

    Why is it that the incandescent bulbs that blow the most frequent are the ones in the tightest, most inconvenient spots to access?

    #12 43 days ago
    Quoted from JayDee:

    Why is it that the incandescent bulbs that blow the most frequent are the ones in the tightest, most inconvenient spots to access?

    That's known as "Tesla Murphy's" law.

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