The Marine lights are for marine plants and aquariums.
The Bio Tropic are for equitorial plants, to be used in conjunction with the red bulbs when used for cannabis. I would use basically what they suggest for the growing of plants on their site. Use 50% BIO TROPIC and 50% DAYLIGHT WHITE 6500K for seedlings, all bio tropic for cutting to stimulate rooting. cool white 4000k and bio tropic for veg then switch out the cool whites for the reds then for early flowering to promote switching from veg to flower go with all reds then later in flowering add some blue by adding some bio tropic bulbs. You can simulate the spectrum cycle the sun goes through better in this way than with HID combination.
Paht_Hed Reviewed by Paht_Hed on . Best spectrum with T5s, beat HID by far! nlite Linear Fluorescent Tubes Check out the spectrum of the Bio Tropic T5 Fluoro. It spikes at 440nm and again at 665nm. Cannabis plant photsynthesis is able to use 95% of the 440nm lumens and 99% of the 665nm lumens. This means that you can grow bigger with less lumens=less watts. Check out the pics/spectrums, need I say more? First pic is Marine 11000k, Actinc (blue) Second pic is the 25000k, Bio Tropic (pink) Third pic is the 2700k, Red (orange) Rating: 5