uvb is it necesssary for floweing!?

just wondering if uvb work for producing more thc and if so is it worth the money to use?

Tried it on one grow and didn't seem to make much difference. UVB may be good in mass quantities but a reptile light does close to nothing.

I think UVB has it's place. It's all in how you use it. Search the forum, there's threads about it. Look on youtube, there is talk about it. Smoke a bowl first cuz the best video on there was kinda long and detailed.

Ir seems to help resin production in late flower.