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CFL bulbs, especially earlier versions often emitted a surprising amount of UV light. The speculation is that the tight coils of glass would result in breaks in
by briHass 5y ago
CFL bulbs, especially earlier versions often emitted a surprising amount of UV light. The speculation is that the tight coils of glass would result in breaks in the phosphor coating, letting the UV through.
I know I have fixtures that used to have CFLs in them, and any plastic is yellowed significantly.
- bradknowles 5y agoUV in fluorescent bulbs escapes directly through the phosphor itself. No phosphor is 100 opaque to UV, nor does any phosphor convert 100% of UV to visible light. Some phosphor coatings might be better than others, but they will all leak a certain amount of UV.