Heat Resistant Borosilicate Glass LED Street Light Retrofit Kit – 75×135 Degree Beam 95% Transmittance Product Overview A retrofit optical kit built around one problem that ends most plastic-lens projects: heat. The 106.6 × 32.86mm borosilicate glass lens sits directly over the LED array inside a sealed housing, where temperatures climb past the point that PMMA and PC optics begin to yellow, sag or crack. The kit arrives complete – glass lens, silicone gasket, metal holder,
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