how much does a 400 w HPS draw electricty?

Discussion in 'Grow Room Design/Setup' started by SirKaos, Jul 10, 2012.

  1. #1 SirKaos, Jul 10, 2012
    I would appreciate if anyone could help me solve this calculation.

    The electricity current i have is 220V.

    I am looking at the 400 w HPS light+ballast and wanted to know:

    Q: How much would a 400w HPS draw electricity in AMPS.

    Thank you
     
  2. #2 ryeseisi, Jul 10, 2012
    Watts = amps*volts, so, amps= watts/volts. A 400 w light and ballast will probably use around 420-450 watts total, so you're looking at 450/220 = 2.045 amps.
     
  3. #3 rain dancer, Jul 10, 2012
    Bout 15-30 bucks. 600w runs me 50-60 a month. Take care.
     
  4. #4 ryeseisi, Jul 10, 2012


    15-30 "bucks" is not "amps" :p
     
  5. #5 rain dancer, Jul 10, 2012

    Never said it was:confused:
     
  6. #6 420patient, Jul 10, 2012
    Last edited by a moderator: Jul 10, 2012
    I thought he wanted to know how much it would cost to,,, but lookin back at when he mentioned he had a 220v outlet and also mentioned 4oow in amps im kinda confused to...lol
     
  7. #7 rain dancer, Jul 10, 2012
    ^ you gotta stop "liking" my posts. Now you got ryeseisi mad at me! XD!
     
  8. #8 420patient, Jul 10, 2012

    That's what it cost in my area EastCoast...:D
     
  9. #9 420patient, Jul 10, 2012
    To the op you'd be totally safe running the 400w on the 220v it would also work fine on the standard 110v, but i have read that it will draw less when ran on the 220v.
     
  10. #10 ryeseisi, Jul 11, 2012
    It will draw the same amount of power (400 watts) on a 110 or 220v line, but the 220v line has more capacity to handle it, therefore it will draw fewer amps. It just means you can run more shit on a 220v line than on a 110v line, not because it draws less energy but because the line can handle more.
     
  11. #11 SirKaos, Jul 11, 2012
    thank you all. it is clear now
     

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