Product Description
| Product Abstract: |
| This visual chart light box is made of high quality raw materials, all aspects of its performance are far beyond the traditional visual chart light box. |
| Features:Â |
| â– Brightness is uniformity, light soft and comfortable |
| ■The charts are not easy to wear, and can maintain a long-term clear; |
| â– DC light source, light stability; |
| â– Long life, portable, energy-saving and so on. |
| Specification: | |
| Type of chart: | E charts,astigmatic chart,red/green balance chart |
| Frame material: | Aluminium alloy |
| Light source: | LED |
| Distance of testing: | 2.5m |
| Decimal record: | 0.1~2.0 |
| 5 point record: | from 4.0 to 5.3 |
| Record of vision: | five points record,decimal record,fraction record |
| Size: | 60*30*1.7cm |
| Net weight: | 0.88kg/pc |
| Gross weight(1pc) | 1.46kg |
| Packing size(1pc): | 75*36*7cm |
| Gross weight(5pcs): | 8.5kg |
| Packing size(5pcs): | 77*39*39cm |
| Standard power: | 12W |
| LED color temperature: | 6400k |
| Initial light effect(Im/W): | 80 |
| Energy consumption: | 1 grade |
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