1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
2. Light transmission: 95% (97% after coating)
3. Refractive index: 1.474
4. Operating temperature: -50-500 degrees
5. Size introduction: External diameter: 86mm, Height: 30.3mm, Steps: 3.2mm
6. Light angle: 110 x 50 short-range projection

1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
2. Light transmission: 95% (97% after coating)
3. Refractive index: 1.474
4. Operating temperature: -50-500 degrees
5. Size introduction: External diameter: 85mm, Height: 26.7mm, Steps: 4.0mm
6. Light angle: 130 x 60 polar light street light lens