HEAT CIRCULATION vs LIGHT
Case: Imagine a part of your living space, where you can grow greens all year round, and at the same time use the heat-output to warm up your space. This could not only provide food all year, but also expand the outdoor season by starting sprouts indoor, in a controlled environment, before they are ready to be planted out.
Another mayor benefit by utilizing the radiated heat, is the possibility to fully heat your living space with green energy. This means less foresting for wood to burn. Less Co2 emissions from NOT BURNING WOOD or other carbon-based energy sources. Naturally all this requires a solid environmentally friendly energy infrastructure.
By introducing CAN (Controller Area Network) to the "intelligent" GEM/lamps, if several lamps are connected only a "Master" CAN node will need a connection through either USB or wireless. This means a great deal in a greenhouse scenario, where many lamp all need to be monitored and controlled from a central hub. Likewise only one wireless module in the network is necessary, depending on the case.
UPDATE: The process of finding the best pcb for high current LED´s led me to Metal Core PCB with sinkpad´s. Sinkpad connects the cooling surface of the MCPCB and heat pad on the LED. This gives a x100 performance in heat transfer and thereby optimizing cooling. Literally the LED´s will be mounted more or less directly on the heatsink. The PCB´s has been ordered and I am making the final adjustments to the heatsink.
The design is starting to manifest.
White LED´s use energy to lite up the full visible spectrum. The Red and Blue only one wavelength(area) and is therefore cooler in use. The difference between the red and blue wavelength is another matter.
For office environment the fully white GEM would be more pleasant for the human eye. In a school scenario the lamps would be part of photon to plant growth process.
The Controller for the lamp has 40 amp rated MOSFET´s (Switches). How fast the controller is able to switch the switches depends on several factors. One main factor is the switching resistance Rds(on) and naturally the frequency of switching. Since the controller inside the lamp is actively cooled by the 60mm fan right next to it, a small heatsink directly on the MOSFETS would make a significant difference.
As seen in above image, the positive power line is fortified with a 1.5mm x 1.5mm busbar (square copper wire). This should handle up to 45 amp. with a temperature rise below 10C. The wire-lugs for the wire going to the PSU is rated at 65 amp.