If you have a bearded dragon, this is the correct type of UVB light they need. If you are currently using a coil UVB bulb, you will discontinue using that and use this instead. You will pair this strip UVB with a clear reptile heat light. They both need to be on the same side of the tank. UVB needs to be distanced accurately. Adult bearded dragons need a temperature gradient in the basking area 99 to 104 and a baby needs temperatures in 104 to 109. You need a digital thermometer and you also need a temp guide to accurately determine the temperature. I love the Arcadia Linear UVB 12% it’s very good quality. Note: just know the bulb is good for 12 months and then you need to change the bulb. The UVB is not indefinite so that’s why you need to change those folks every 12 months. pets reptiles beardeddragons lizards uvblight reptilelight beardeddragon beardies uvbbar LTKPets LTKSaleAlert LTKHome LTKmomlife