[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

CF bulb life

Are compact florescent bulbs good for the entire time they provide visible light or do they become ineffective over time? Many moons ago I kept reef tanks with lots of atinic and metal halide bulbs and they supposably only provided the desired wave length for a finite time due to color shift etc. My cf bulbs are now approaching 18 months and plants still grow well, just curious.