4 ms·
If it uses a phosphor coating, isn't it also prone to the same issue of diminishing lumens over time as the CFLs? These bulbs lose up to 30% luminosity in 6 mon
by hcarvalhoalves 14y ago
If it uses a phosphor coating, isn't it also prone to the same issue of diminishing lumens over time as the CFLs? These bulbs lose up to 30% luminosity in 6 months (the tri-phospor ones, more expensive, can a last a year begore losing 10%/20%).
If they lose power like CFLs, even though the warranty is 10 years, you may be forced to replace it way before that.
- Steuard 14y agoI don't think I can comment on that with any authority at all. Is it possible that using a blue light as the source rather than UV reduces the degradation of the phosphorescent coating?
- thrownaway2424 14y agoPower LEDs also age, but CREE uses controllers in their fixtures which adjust the output over the lifetime of the device.