TECHNICAL SPECIFICATIONS(ND400):
1. Frame: 110X90X8mm(4.33"X3.54"X0.31")
2. Viewing Area: 94X41mm(3.70"X1.62")
3. UV/IR Protection: Up to shade DIN 16 at all time
4. Light State: Shade DIN 3
5. Variable Shade: From DIN 9 to DIN 13
6. Power Supply: Solar cells, two lithium batteries
7. Power On /Off: Fully Automatic
8. Switching Time
a).Light to Dark: 1/25000s at room temperature
b).Dark to Llight: 0.25~0.35s at position
0.65~0.80s at position (LED display)
9. Sensitivity: Low or High(LED display)
10. Operating Temperature: - 5oC + 55oC
11. Storing Temperature: -20oC + 70oC
12. Weight: 125G