Hi, i have an 8-10 gallon cube tank that i want to nano. It is a nice looking tank , bow front with its own hood, the light , however is not so great, it has an 11 watt fluorescent tube, looking at various options and avalability and cost this is my latest thinking...
from what i have read i will need ~70 watts of light (a nonsense i know..)i was looking at a power compact bulb the other day (16 watts) that said that its output was 800 lumens
using that as a model 70/16 =4.3.. lets say 5 bulbs... this would be a squeeze in the hood and would generate some serious heat
If one compact fluorescent bulb gives off 800 lumens then 5 would give off 4000 lumens,
to convert lumens to MCD (measure of light emmited from an LED) you divide lumens by 12.57 then times by 1000
4000/12.57 = 318.2 x 1000 = 318,200 mcd
currently on ebay you can buy 60,000 mcd super white led's
318,200 / 60,000 = 5.3
is this so... i can get the same light from an led as a 16w compact fluorecent
the viewing angle of these things is ~12 degrees which means at ~30 cm(a foot depth) you get a spot around 8 cm in diameter, which will flood and dissapate to cover an area of around 12 cm
using πxR2 (π = 3.14) the area of light would be 113 cm2
the tank is 33x33 therefore its area is 1089 cm2
area of tank / area of light (1089/133)=9.6
Based upon these calculations i reckon that my nano could run with 10 of these LED's and get enough light to be equal to ~150 watts of more conventional lighting without all the heat
The spectral data from these leds indicates good levels of PAR avalable and plenty of blue light
I have 20 of these things so the light coild be boosted to the equivalent of 300 watts as i see it
any comments, suggestions or observations please would be apperciated
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from what i have read i will need ~70 watts of light (a nonsense i know..)i was looking at a power compact bulb the other day (16 watts) that said that its output was 800 lumens
using that as a model 70/16 =4.3.. lets say 5 bulbs... this would be a squeeze in the hood and would generate some serious heat
If one compact fluorescent bulb gives off 800 lumens then 5 would give off 4000 lumens,
to convert lumens to MCD (measure of light emmited from an LED) you divide lumens by 12.57 then times by 1000
4000/12.57 = 318.2 x 1000 = 318,200 mcd
currently on ebay you can buy 60,000 mcd super white led's
318,200 / 60,000 = 5.3
is this so... i can get the same light from an led as a 16w compact fluorecent
the viewing angle of these things is ~12 degrees which means at ~30 cm(a foot depth) you get a spot around 8 cm in diameter, which will flood and dissapate to cover an area of around 12 cm
using πxR2 (π = 3.14) the area of light would be 113 cm2
the tank is 33x33 therefore its area is 1089 cm2
area of tank / area of light (1089/133)=9.6
Based upon these calculations i reckon that my nano could run with 10 of these LED's and get enough light to be equal to ~150 watts of more conventional lighting without all the heat
The spectral data from these leds indicates good levels of PAR avalable and plenty of blue light
I have 20 of these things so the light coild be boosted to the equivalent of 300 watts as i see it
any comments, suggestions or observations please would be apperciated
Report this post