https://diyblindguy.com/2019/10/18/build-an-led-grow-light-for-seedlings-and-cuttings/
Build An LED Grow Light For Seedlings and Cuttings | DIYBLINDGUY
Build a cheap LED grow light for seedlings and cuttings. Replace your shop lights or CFLs with this more efficient LED light.
led grow lightbuildseedlingscuttings