That's a coil uvb bulb they provide little to no uvb. You should buy a t5 fixture with a arcadia t5 12% uvb or reptisun 10.0. These are linear uvb and are the way to go. the coil bulb will cause harm in the long run!
I would recommend a t5 uvb they are more efficient and are the better option. T8 are better than coil but for a veild I would recommend arcadia since they last longer and the t5 desert 12% uvb. But you would have to buy a t5 fixture to use a t5 bulb. Also if your looking for more plants walmart...