Nisam siguran da li je COB to na šta mislim, ali ja bi rekao da nije, na ovo sam mislio, obična led žarulja sa svim spektrom:
A ostale standardne v-tac žarulje što se kupe po centrima, naravno sa skinutim difuzorom.
18W 30W 45W 80W LED Grow Lights E27 Lamp Bulb for Plant Hydroponic Full Spectrum | eBay
Item: 30W E27 LED Grow Light. Item: 18W E27 LED Grow Light. Item: 45W E27 LED Grow Light. Item: 80W E27 LED Grow Light. This hydroponic led grow light can rapidly improve the health of plant and growing, generally more leaves popping up within 2 weeks of using this growing lamp on a daily basis.
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A ostale standardne v-tac žarulje što se kupe po centrima, naravno sa skinutim difuzorom.