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: | |||||||
| * Brightness is uniformity, light soft and comfortable | |||||||
| * The charts are not easy to wear, and can maintain a long-term clear; | |||||||
| * DC light source, light stability; | |||||||
| * Long life, portable, energy-saving and so on. | |||||||
| Specification: | |||||||
| Type of chart: | kid chart,astigmatic chart,red/green balance chart | ||||||
| Frame material: | Aluminium alloy | ||||||
| Light source: | LED | ||||||
| Distance of testing: | 5m | ||||||
| Range of testing: | from 4.1 to 5.3 | ||||||
| Record of vision: | five points record,decimal record,fraction record | ||||||
| Size: | 902*302*17mm | ||||||
| Gross weight(1pc) | 2.4kg | ||||||
| Packing size(1pc): | 100*37*7.5cm | ||||||
| Gross weight(5pcs): | 13.2kg | ||||||
| Packing size(5pcs): | 104*39*46cm | ||||||
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