Thread: ge energy smart 6500k bulbs ...pics
View Single Post
  #8  
Old 09/11/2007, 08:36 PM
nemesis7 nemesis7 is offline
Registered Member
  
Join Date: May 2001
Location: flint , mi
Posts: 70
ok so each bulb according to specs gives off 1600 lumens so 1600 times 8 bulbs is 12800 lumens . i do plan on adding actinics as soon as the bulbs come in. my question is how many lumens do i really need for a 70 gallon reef?