Missing 30 watts

Actuosity

Actuosity

Well-Known Member
Drivers arnt 100% effcient thus slight loss, most are 90-95% effcient 10% of 315 is 31.5 whick would give you around 284W
 
TheTinkerer

TheTinkerer

Active Member
Actuosity said:
Go back 60 years and you’d be looking at 30-40% effciency. Even prior to 2005 you would normally see 75-80%. You should be greatful
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Yeah, the indoor horticulture scene musta been pretty rough 60 years ago. I mean, good luck finding a hydro shop!
But, ok, I’ll try to be happy with 91%, for now.
 
Actuosity

Actuosity

Well-Known Member
TheTinkerer said:
Yeah, the indoor horticulture scene musta been pretty rough 60 years ago. I mean, good luck finding a hydro shop!
But, ok, I’ll try to be happy with 91%, for now.
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Im talkig electronics in general drivers have been around far before growlights. Please don’t get confused here i know its a hard concept to grasp that electricity was created for more than grow lights.
 
shimbob

shimbob

Well-Known Member
Look at the specs. At ~166V DC side, you're only running ~89% load, which the efficiency vs load chart says means ~92% efficient. It's penalized by being on 110V, can you switch it to 220V?
 
TheTinkerer

TheTinkerer

Active Member
shimbob said:
Look at the specs. At ~166V DC side, you're only running ~89% load, which the efficiency vs load chart says means ~92% efficient. It's penalized by being on 110V, can you switch it to 220V?
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I suppose I could. It might cost $100 to run a new circuit and change cords. How long would it take to make up the initial cost in energy savings?
Any mathematicians in the house?
 
Chip Green

Chip Green

Well-Known Member
What is your KW/hour rate? Your talking about .03 Kw/hour....This is what those 30w would cost me, assuming this is a flower light, on a 12 off schedule....
I pay $0.20 per KWH. So I'll use that figure.
.03 kwh x 12 hours= .36kwh per cycle.
.36kwh x 365= 131.4 kwh per year.
131.4 x $0.20= $26.28 per year.
 
TheTinkerer

TheTinkerer

Active Member
Chip Green said:
What is your KW/hour rate? Your talking about .03 Kw/hour....This is what those 30w would cost me, assuming this is a flower light, on a 12 off schedule....
I pay $0.20 per KWH. So I'll use that figure.
.03 kwh x 12 hours= .36kwh per cycle.
.36kwh x 365= 131.4 kwh per year.
131.4 x $0.20= $26.28 per year.
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Nice work!
I pay more in winter than Summer, but I think it’s been about $0.13 per kWh lately. I’ll let it ride for now and add a 220 circuit sometime when it’s convenient. I’ll do it to be efficient, not to make it pay.
 
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