My Ballast is only for MH.
But they make 3000 Kelvin Spectrum for Metal Halides now ! they are quite pricey but i was wondering if i should replace my 6500 Kelvin Mh bulbs with these ones as they are closer to the flowering spectrum..
Check this out :
[video=youtube;nq6RynfdE6c][/video]
i am familiar with SunPulse mixed spectrum light bulbs, they only come in 600watt and 1000watt. i still have not seen any data on how it would improve cannabis growing with either potency, flavor or yield. i am familiar with 10,000 kelvin high intensity light bulbs from keeping aquariums and its effect on coral growth and have been curious as to whether it may increase resin production in cannabis. Heath Robinson is someone who did a lot of bulb testing for cannabis and said to use the 10,000 kelvin bulb in the last two weeks i believe.