(2 Pack) Aqueon T8 Replacement Lamp Colormax (15Watt – 18″)

This product does pretty much what you expected to do but my problem is that I have to keep replacing the bulbs about every 2 and 1/2 to 3 months. Granted I do keep the light on a little more than I should but it seems that the longevity of these bulbs is not as significant as advertised. As such I am having to frequently purchase the two pack about every 3 months or so.