Listing ID #3542516
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Contact SupplierDiameter - 40mm to 100mm
beam angle - 60 degree to 160 degree
height - 18mm to 35mm
watt - 10watt to 300watt
material - optical glass ( borosilicate glass )
heat resistance - -50 to 500 degree
transmittance - above 94%
reflective index - 1.474
quality - clear and transparent, bo bubble and impurity inside.