i bought 5 42-watt ( 200 equivalent) 6500k, 2800 lumen each cfls at menards for $48. 5 of those means 14,000 lumens. they also have the same wattage in 2700k for flower. if you switched over to these high watt bulbs you would greatly notice a difference in your harvest. the more light when flowering the more frequent, compact, and better your buds.