Potentially stupid question about UVB...

[cptndunsel]

Does the light fixture play any role in the output of UVB light, or is the bulb/reflector the only thing that I should be concerned with? Thanks to any who answer, I realize that this might be a dumb question and that I am probably overthinking things. But I want to be thorough.

 

[CooperDragon]

The fixtures themselves are standardized for size/wattage so they have less of an effect as long as the manufacturer adheres to good quality control standards. From what I've seen, the output is more directly affected by the reflector. The bulbs are also standardized as far as size and wattage, but vary between brands in terms of quality control and the internal components. It definitely makes a difference when you invest in a high quality brand like Arcadia.