Reefing it with LED's (help needed) Answered
Well this is my second post and I am a bit more learned in the ways of LED circuits from many of your posts.
Objective: Create a high light output LED array that will peak at around 16,000K for growing coral for reef aquariums.
Primary strategy: connect 10 or more Luxeon III stars in series
Preferred requirements: Energy efficient, Low Heat emittance, Needs to peak out at the appropriate spectrum for the coral ( I have that covered just by changing the ratio of cool whites to royal blue Luxeon III's)
At the moment I a just going for a simple on/off, later i would like to employ a form of automated dimming so that it fades on and off so there is not such a sharp on off with the LED's. So far I have a circuit that i plan on modeling my LED array after since it was readily available for me to dissect. The following is an LED array. I know that there is a diode rectifier bridge built in there and a smoothing capasitor but there are to components i do not recognize they are connected at the positive and negative ends of the circuit. One is the Yellow (doohickey with part # 684j 250) component attached to the positive lead and the other is a clear (fuse/resistor hybrid) component next to the resistor on the board.
I was able to draw the circuit and it seems pretty straight forward but I just need to know if I will be able to spec the appropriate components to operate 10 leds in series (Each LED operates with a Vf=3.9 V and I= 1000mA ) they will need a supply of more then 40V DC.
Any help or dialogue I can get the more the better and the more I will learn
In addition I looked at Dan's high power constant current but not sure how well it would operate under the conditions that I have specified
Primary LED's in use for the Reef light: (note all are stars)
LED part # Color Type Vf Amps Lux
LXHL-LW3C cool white Lambertian 3.9 1000mA 80lumens
LXHL-LR3C Royal blue Lambertian 3.9 1000mA 445mWLumens
LXHL-MW1D cool white " " 3.42 350 mA 45 Lumens
LXHL-MRRD Royal Blue "" "" 3.42 350 mA 220 mWLumens
There was little to no difference between the 700 mA series and the 1000mA series so I did not list them
I look forward to all your help