are these bulbs worth it?

no no no no no no no

ya might as well spend the extra money and get this,
High Tech Garden Supply

No! for the price of that I could buy 30CFL lights for the same price and end up with 27,000 lumes

I don't know if Costco still has them But I bought a 65w=500W daylight system for only $9.00 has something like 65,000 lumens.