X-Cite® Liquid Light Guides
When should light guides be replaced?
It is usually time to replace a light guide when:
• Illumination is low and replacing the lamp does not improve brightness.
• Dark or uneven areas become visible in the field of view (a bubble is blocking part of the light).
• A section of the light guide becomes noticeably warmer than the rest of the guide (a bubble is blocking transmission of light, forcing the light guide to absorb the energy).
• It is 2-3 years old OR has been in use for 4000-6000 hours (2-3 lamp changes), when handled properly in a well maintained unit.