The manufacture says running it 24/7 is 10.00 a month.
The math is simple, you can work it out yourself
Watts x hours on per day x days in the month ÷ 1000 = kilo watts. Multply that by what you are being charged per kilowatt to get your cost.
Example: 125 x 18 x 31 ÷ 1000 = 69.75 kW x .06c = $4.20
69.75 kW for an 18 hour cycle and a 31 day month.
We get charged highway robbery rates in my country (18c per kW) so every kW I can save is 18 more cents left in the wallet. I'm saving about 200 kW a month vegging with my LED array.
i am prepaired to see fluffy/air-e buds kinda like my t-5's, but im real curious about yield. so far so good
I think if you dont veg them too high, cut back to say 3 of your best plants out of the six, pinch out your buds to allow for a wider flatter canopy, you will get a better result than trying to bud tall plants with LEDs. The Procyon 100 probably puts out the most lumens per square foot of any LED array currently on the market and you can see where the most intense area is, its the yellowed spotlight area clearly seen in pics 1 2 and 3.
Don't be duped by the manufacturers spin on this, that is your optimum grow area which will spread a little as you lift the light. LEDs give you about a foot of solid grow light below your light. The procyon probably gives a little more. So if you lift your light to be just over a foot above your plant canopy you will still be feeding the optimum lumens to the canopy but anything under that will begin to suffer and stretch and produce tiny buds and few and far between.
So once your plants get to about a foot high that Procyon will have to be about 2 - 4 inches above the top canopy to get light deep enough to feed the leaves on the next level down.
But as you can imagine this will not give you much canopy cover which is why I suggest you try not to flower 6 plants under it, although vegging 6 to about a foot would be ok.
Just suggestions, take them or leave them.