led secondary optics

Model: KL-HB78-120 (three-piece set) Note: For this lens, we have matching gasket and stainless steel holder, which make installation easily. Product description (1)This lens for led high bay lighting, 10W-100W COB LED. (2)Suitable for led packaging size is less than 53mm. Material performance (1) Made of borosilicate glass 3.3 (2) refractive index: 1.474 (3) Never get yellow comparing with PC/PMMA material (4)Light transmittance: 99% (5) Working Temperature: -50~550℃ Applications: Led high bay lighting, miner lighting, flood lights and other application. Apply for LED chip types: This lens is mainly used for high power COB led chip Main feature: A: Can match up all kinds of different high power led (integrated led ), can be suitable for 30w led and above B: Adopt high precisy aspheric design and superior optical glass, strictly perform ROHS environmental standard C: Clear and transparent, no mould mark, no inside bubble and impurities