eddiesylas
Premium Member
OK what am I missing?
I live in Groton.
The Rate for electricity is $0.137/kWh.
To drive (8) 54 Watt T-5s for 12 hours/day is ~ $265/year ($22/month)
The cost of bulbs is ~ $165/year ($13.75/month)
Cost of fan $5/year
To drive (4) 90 Watt LEDs for 12 hours/day is ~ $220/year ($18.40/month)
That is a $215/year savings
Aqua Illumination sells their 48" unit for $2445 (neat product though)
It would take 11 years to make up for the cost of the unit.
DIY 48" unit $800 ("on/off" with no extras and you really know what you are doing and get it right the first time...)
It would take 3.6 years to make up for the cost of the unit.
I live in Groton.
The Rate for electricity is $0.137/kWh.
To drive (8) 54 Watt T-5s for 12 hours/day is ~ $265/year ($22/month)
The cost of bulbs is ~ $165/year ($13.75/month)
Cost of fan $5/year
To drive (4) 90 Watt LEDs for 12 hours/day is ~ $220/year ($18.40/month)
That is a $215/year savings
Aqua Illumination sells their 48" unit for $2445 (neat product though)
It would take 11 years to make up for the cost of the unit.

DIY 48" unit $800 ("on/off" with no extras and you really know what you are doing and get it right the first time...)
It would take 3.6 years to make up for the cost of the unit.
