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LY-21E LED 5M Visual chart light box, 4cm thickness.
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Item#
LY-21E
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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: | E charts, 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: | 90.2 * 30.2 * 4cm | ||||||
Gross weight (1pc) | 3.3kg | ||||||
Packing size (1pc): | 104 * 35 * 12cm | ||||||
Gross weight (5pcs): | 13.2kg | ||||||
Packing size (5pcs): | 106 * 63 * 37cm |
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