| Re: Face Tanner Filter Glass??
If they are blue glass style filters then yes, they do solarize & decrease output. Many HP bed manufacturers recommend that you change your blue glass filters every 2500-3000 hrs. (No one ever does this, but check the manuals on the big HP beds & you will see it.)
If you have mirrored glass like Ergoline/UWE, they do not solarize, but they can get burn/heat marks in the glass & this also will decrease lamp output.
Also check capacitors for HP lamps, no one ever does & they can cause many issues with HP lamps.
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