... 5. Inside quality: Clear and transparent, no mold marks, no inside bubble and dirts. 6. Function: ... Guide of the light beams, LED light beams 7. Application: Lighting system, Electronics, Electrical apparatus, Industries. Lamp cover, Lamp shade ... , Stage lens, LED lens, Reflector lens, Sight lens, Front lens, Refractor, Molded lens, Spot lens, Lighting shade ...