Material:Glass Usage:Optical Structure:concave-convex Shape:Aspheric Name:100w 300w high power industry cob optical glass lens Material:high borosilicate glass 3.3 Light transmittance:95% Working temperature:-50degree~550degree suitable led:for cob led/bridgelux led/citizen led and so on Application light:led high bay lighting Color:transparent Certificate:SGS/RoHS/ISO9001 Tensile Strength:40- 120Nmm - 2 Show More