Now factor in the cost of fans, ventilation, tools and bits to cut holes to run it, the need for much more AC, the need to change 100-200$ bulbs every 6 months, and the need to replace reflectors at minimum every 2 years and best at 1 year (guaranteed 10% light loss in first year), oh and repairs if you are renting (hopefully you run a light where the whole hood doesn't have to be replaced and you can just replace the reflector...). I am not going to even try to calculate ac use for a home grower using a room...It's less savings of course if you have a split.
It adds up big time and quickly. 200-400$ on bulbs alone a year and 100$ minimum for reflector vs. 1200 bucks up front for a light you never have to do this shit with that covers the same area and has full spectrum so yield and veg is BETTER. We are talking prebuilt top of the line. You can build your own for huge savings. Building your own easily saves you half the cost.
And average 4k watt house grow in South East states cost 700$-900$ (depends on state) in electric a month to run. Cut that in half and you have 400$ in electric savings a MONTH (even a third is great money if you wnnt to be conservative in estimate). I ran multiple homes for years in multiple SE US states so I know the average cost.
You are way off base when it comes to 10 bucks a month on electricity savings when your electric bill is cut in half due to moving to LEDS....
400 x 12 = 4800$ a year savings in power Even if it only saved you a 1/4 or a third the power the savings are big.
100-200 PER LIGHT 4k watts = 4 lights for bulb replacement twice a year.
Why keep doing math? Save money and go led.
Grows like an OG and is pretty easy to grow. I could have been more consistent with the feedings and I would have done better.