Will 2 150watt lights= a 300watt light?

[sheist]

Lumens decrease by half blah blah blah blah blah blah then some extra blah blah blah after a spectrum would blah blah.. So basically I have no idea

lmaaooooo

(2) 150w CFLs will give the power of (1) 300w CFL..
You'll have the same power, but easier maneuverability because the power is split into 2..