I plan on using the double shot glass method with cut offs to collect some pollen. When I put the cuttings on a 12/12 lighting schedule do I have to use a lot of wattage or can I just go like 100W or something for like 10 small cuttings? Thanks!
I used 2 4 ft tubes for my 4 ft male and got plenty of pollen. You should be fine as long as the cuttings are small. If you are growing bud that's when you really need to add watts.