Recent content by tutaj5

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    Economical multi LED Chip Projects for Growing

    But i agree in that these cheap COBs are a great solution for those starters/budget growers that just want 1 or 2 plants and just want some homegrown dope without spending a lot on light equipment.
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    Economical multi LED Chip Projects for Growing

    I dont think thats enough surface area for that much power, it may be functional but remember higher temps mean less light output. I may be wrong tho.
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    Economical multi LED Chip Projects for Growing

    I just checked if they are safe by touching the heatsink also I have no grounding in my house so I cant ground them. I am not afraid to die.
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    Economical multi LED Chip Projects for Growing

    I tested those 50W COBs yesterday, all of them consumed 65watts on 238volts. I used old CPU coolers with 8cm 12v fans to cool them down and put 75C thermal switches on the heatsinks for safety. They remain relatively cool to touch. I also put some hot glue on the solder points to insulate them...
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    Economical multi LED Chip Projects for Growing

    Did you order and test them before calling them dangerous? Cause ive seen tests of these, and they are completely safe in every way, just not too efficient. Mains are isolated up to 700V.
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