glass or acrylic lens

[reefburnaby]

Hi,

In general, as long as you aren't using blacklights (BLs or BLB), the UV concentration of fluorescent lamps is low. 8 hour exposure of conventional tube lighting has about the same exposure of 1 minute of outdoor sunlight.

Without phosphors, fluorescent tubes contain a lot of UV and not a lot of visible light. The phosphors efficiently convert UV in to visible light and heat. Hence, very little UV escapes outside the tubes -- its all contained within the tubes.

MH, MV and HQIs have a significant amount of UV. Hence, a shield is required for bulbs that do not contain a self-contained shield -- for example HQIs.

- Victor.