... transmittance 3) high temperature resistance 4)clear solar concentrator glass lens(GT-TYN01/01/03)1)material: optical glass(borosilicate), ... K9,BK7,B270 2) light transmittance: 95%( coated lens can up to 97%)3) size :4) shape: aspheric5) ... light,wall washer ligh,tunnel light, table light,far-infrared monitoring light,infrared light,pool light, stage light, projector light,optical ...