View Full Version : changing 400w to 600w mid phase?

11-27-2009, 09:55 AM
Hi there

my plants are flowering at present and I'd like to change from a 400w to 600w bulb. Does anyone know if this will damage the plants in any way?


12-02-2009, 12:26 PM
Are you adjusting the spectrum or just adding wattage? I don't think there is a set fast rule of maximum lumens per plant. The biggest concern may be an increase in heat. How is your ventiliaton?