I bought a t5 duel lamp fixture that comes with 2 21 watt bulbs. (10,000k daylight and bluelight)
I know I need to at least change the blue light for plants but my question is, do I have to stay with 21 watts. No instructions came with the fixture!
I know I need to at least change the blue light for plants but my question is, do I have to stay with 21 watts. No instructions came with the fixture!