convert watts to lumens
convert watts to lumens
I found a reference on the web that a 100w incandescent bulb puts out about 1700 lumens.
Wikopedia says.......
A 23 watt compact fluorescent lamp emits roughly 1500 to 1700 lm, which is comparable to a general-service 100 W incandescent light bulb designed for use at 120 V.[1][2][3][4] Incandescent light bulbs designed for operation at higher voltages are generally less efficient.[5] For example, standard 230 V bulbs listed in one online catalog include models that emit from 1200 to 1400 lm.[6] The number of lumens produced per watt of power consumed is the wall-plug luminous efficacy of the source.
If we want 4watts/gallon than:
4watts/gallon=4watts(17lumen/watt)=68lumen/gallon
We need 68lumens per gallon to acheive the old standard of 4watts /gallon.
Example 29gal tank needs 68lumens/gallon*29gallons=1972lumens or about 19 Cree Q5 leds.
Thus 1/2 of the soundwave system puts out 2400 lumen using 100 lumen Q5 cree leds.
2400lumens*1gallon/68lumens=35 gallons at 4 watts of light per gallon.
His complete system would work fine for a 75 gallon tank as it was designed to do.
Does this make any sense? (Yes I ignored how effective the light is compared to the wider spectrum lighting systems)
Here is an intersting link.
http://www.fitchfamily.com/lighting.html
