Why don't you invent a bulb that can be produced for under $100, will produce 100,000+ lumens in a good flowering spectrum, and, most importantly, will run on standard 120vac?
You can, of course, use resistors.
As a reward, you can patent it, and make a shitload of money.
You can, of course, use resistors.
As a reward, you can patent it, and make a shitload of money.