Would bulbs that have 2600 lumens work?

or is it strictly 2700/3000 for flowering?

Are you talking about Kelvins? There is a difference between Lumens (light intensity) and Kelvins (light spectrum, colour). You can really need at least 5000-7500 lumens per square foot of space. 2700k-3000k is perfect for flowering, you want a full spectrum daylight bulb (6500k) for veg.

lumens is not the wrod you wanted but 2600kelvin

lol sorry everyone yes i meant kelvins, thanks for the responses.