Originally Posted by mack23
yeah, for my plants i always go for something between 5,000k to 6700k, but your plants seem to love it, and the colors do look good. i may have to do a bit of experimenting....
Watt for watt the 5000-6500k spectrum will probably have better par than an 8,000k, or a 10,000k, the higher you go, the less reds and yellows you have in relation to the blues and purples. But when you have major overkill lights such as an HQI, your photosynthesis will be maxed out even at a higher Kelvin. I'd just keep it at 10,000k or under, but if you are at low light already, probably stick to the 5-6500k.