Gardening

I use them mostly for starting veggies inside in the spring. They use T5 bulbs so they're more efficient and provide more light than you'd get from one traditional flourescent tube. I'd estimate one T5 roughly equivalent to two traditional flourescents.

The benefits of these guys are they're simple and cheap and effective for what they are. I can grow my veggies under them for about 4-5 weeks before they start needing more light and I move them to the greenhouse. Lower-light requiring plants could be grown under one of them exclusively. The adjustable height on the lamp is very useful.

The construction is kinda cheap, but mine's held together just fine for years. But they're wobbly and you have to be careful when you pick them up to move them.

If you're trying to supplement another light, they may not be the best because you have to keep the lamps fairly close to the top of the plants for them to be effective, and this would block out some of your other main light. If you're trying to supplement window light or something like that, they could work great.