Alright for those of you that are details freaks like me here's what I found out: (Info only for GE Florescent EcoLux Bulbs!!!) Name: GE Sunshine VS. GE Daylight
Size: 48" T8 / 48" T8
Energy Used: 32 watts / 32 watts
Light Output: 2800 lumens / 2700 lumens
Color Temp: 5000 Kelvin / 6700 Kelvin
CRI: 86 / 78
Alright I'm gonna lean myself wayyy out of th window here now; someone help me if that trail of thought is correct or not....
Lux as we know is the measurement of the intensity in which Light is perceived by the human eye. So important for a planted tank will be the Full daylight
outdoors which is 10-25.000 LUX
(Full daylight not direct sun); The direct sunlight is 32-130.000 LUX
We know Lux is expressing the lumens per square meter; so if I had a 1 sq meter surface hit by a light that's 1.000 lumens that will equal the intensity of 1.000 Lux.
Now to keep my prop already screwy ideas simple I'm gonna do it measuring my tank in centimeters...
So my tank's surface (Standard 55g) is 32CM by 122CM = 0.3904 sq meters
LUX=Lumens / m2
2800lumes / 0.3904 sq meters =7172 LUX (using 1 GE Sunshine)
5600lumes / 0.3904 sq meters = 14.344 LUX (using 2 GE Sunshine)
Sooo IF I done all this thinking and calculating correctly (which I *think* I may have but am not sure) then in simple terms that would mean: Me using 1 GE Sunshine over my 55g will work for all my plants (Sword, Chain-sword, Crypt, Vallis, Ludwigia, Sagittaria) - In theory it should work anyway