Ya I understand that is just equivalent wattage, and really means nothing. Do you understand how bright they become when you remove the globes? The diffuser globes really restrict the output.
I'll put a homemade screw in bulb fixture up against any commercial fixture on the market, wattage for wattage. I'll still pull the same weight, but probably more, because the way I grow.
I got 1000's of watts worth of brand new bulbs, like 4-5 different brands, and could make any size light I want.
Who wants to bet?