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I am now in the process of building a fan speed controller, first I thought about using a microcontroller to do that but in the end the fastest easiest way was to use a MAX31740. Which is an "Ultra-Simple Fan-Speed Controller" which characteristics is all determined by resistors and capacitors...

I have now tried out my panel for a few days and on the lowest setting which should be around 170W the heatsink gets up to the following temperatures(top and middle positions refer to the position vertically in the allowable space): Ambient temperature 77 °F. Top position(right under the carbon...

I got the CXM from Mouser, they stock at least two of the CXM-32 right now but I know absolutely nothing about what determines what products these site stock: CXM-32-65-80-54-AC00-F2-5 CXM-32-50-80-54-AC00-F2-5 I can't post links due to the lack of Likes. Those heat sinks look nice, will...

Okey so the IR is for flowering initiation, I found out there are at least one long good thread here about that so I guess I should have researched that more. But the issue is still the question of how to best implement this addition of IR and UV? I am hoping to get away with using some of all...

By the way, I have been thinking about adding 1 or 2 small IR LED's as well as 1 or 2 small UV LED's and drive them with very little power such that it adds something like below 1% of the total light. I can't seem to recall the exact numbers but I read a document where a LED manufacturer did a...

Well that sounds really good, feels good to be able to let all that lens/reflector stuff go from my mind. Thank you very much for all the answers. I know that 300W might be way overkill but I wanted to give my self room to perhaps later on experiment with added CO2 in which case as I understand...

Hello. I am fairly knowledgeable when it comes to electronics and putting together a LED grow light is a simple matter as far as the electronics goes, but LED's is one of the subjects within electronics that I know nothing about when it comes to the use of LED's for illumination or grow lights...