Review on Highly Efficient Daylight Replacement: SYLVANIA Fluorescent Equivalent by Ann Champa

I bought these bulbs to grow plants in a moist seedling dome. CFLs are very good for this purpose and 6500k bulbs provide just the right amount of lumens to start seedlings efficiently. I usually start with two and add more bulbs as the plants grow and take up more space in the canopy. I've been using the same bulbs for several years so they last a long time and are great value for money. They break easily, especially when warm, so they must be handled with care.