Sing Lee's answers about the fans in the Apollo, as promised:
The Apollo 12 is built with 6 fans (input Voltage 12V and input Current 0.25A at each one)
The conversion rate of the Apollo LED driver system is 90%, it means the Apollo driver system and thermal system have an inner comsuption about 10% of its total actual power.
This is why the Apollo 12 total actual power is 410-430W (according to different spectrum ratio), but the actual LEDs output power is 365-390W, because the driver system and thermal system consume 10% of its total energy.
also, Sing offered this advice to me while considering the construction of my Apollo 12s:
I have just re-calculated your spectrum, 11 pcs Red and Orange LEDs, 4 pcs Blue and White LEDs:
3 Red 660nm
3 Red 650-670nm
2 Red 630-640nm
2 Red 620-630nm
1 Orange 610-615nm
2 Blue 450-470nm
1 Blue 420-430nm
1 White 6000K
It seems if we build the Red and Orange LEDs as 2.7V Input voltage, the output is very close to our limitation(45V).
Here:
11x2.7+4x3.8=44.9V.
To consider a long lasting and safe performance, i would recommend to reduce 0.1V in the Red LEDs, build them as 2.6V Input voltage.
11x2.6+4x3.8=43.8V.
If so, you have to sacrifice 11x12x0.1x0.7=9.24W in the Apollo 12. But for a prolonged lifespan, i think it is worthy doing so.
Well, I agree with this, and was impressed with this level of customer care in dealing with my panel customization. The fact that Mr. Lee addressed this with me honestly before building the panels says a lot to me... Just figured I would share...