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Positronics Seeds

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One of the first of the Holland seed breeders, Positronics has earned a solid and respected reputation. Positronics set out with the mission of ensuring that home growing supplies were available to everyone.

What is the current and voltage on the bulb side of the ballast?

Discussion in 'Lighting' started by ChattyMan, Dec 10, 2011.

  1. Offline

    ChattyMan

    What is the current and voltage on the bulb side of the ballast for 250, 400, 600 &100 watts, please? Many thanks.
    ChattyMan, Dec 10, 2011
    #1
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  2. Offline

    your name here Grand Puba

    check out ohm's/ watt's law
    your name here, Dec 10, 2011
    #2
    1 people like this.
  3. Offline

    ChattyMan

    lol - I'm not that brilliant - besides I don't think Ohms/Watts law covers for the transformer side of the voltage since I don't know what that voltage is to begin with! :lol:
    ChattyMan, Dec 10, 2011
    #3
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    your name here Grand Puba

    voltage is a given.... usually 120 or 240 v

    watts are volts x amps..... if you want to find amps you divide volts into watts

    if W = 400 and V = 120 A = 3.33333333
    your name here, Dec 10, 2011
    #4
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  5. Offline

    ChattyMan

    If I could give you a big squeeze for your patience and care to reply, I would.

    I did say the bulb side of the ballast, not the mains side!

    But I think you're ace for sticking with it!
    ChattyMan, Dec 10, 2011
    #5
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  6. Offline

    your name here Grand Puba

    sorry boss but i am talking about the bulb side.... the ballast side uses more wattage... than the 400 watts pushing through the bulb....
    your name here, Dec 10, 2011
    #6
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  7. Offline

    Balanced

    A ballast is essentially a transformer. Using his input voltage of 120 or 240 does not help you find the secondary (bulb) voltage. This increased voltage would lower your current proportionally, and vise versa. I dont know off hand what it steps the voltage up to for an hid, so I cant help much there, but I understand your question. I hope that helps someone else understand it enough to get an answer at least. :lol:
    Balanced, Dec 10, 2011
    #7
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  8. Offline

    your name here Grand Puba

    your name here, Dec 10, 2011
    #8
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  9. Offline

    ChattyMan

    Thank you; you guys are simply the best.

    thank you for your kindness and time to reply.
    ChattyMan, Dec 10, 2011
    #9
    1 people like this.

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