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JH-5 5M LED children logarithmic visual chart light box, 2.5cm thickness
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Item#
JH-5
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Description
Features: | |||||||
1) Children standard logarithmic light boxes adopt kinds of items which are familiar by children.It's vivid. | |||||||
2) It's suitable for children which are below 7 years old. | |||||||
3) It's necessary for ophthalmology in hospital,maternity and child care,kindergarten. | |||||||
4) The box is made of pure aluminum alloy thicken plank | |||||||
5) Showing board is made of extra thick PVC board.Not easy to be broken,without a glance, not dazzling. | |||||||
6) Appearance using the latest version of ultra-thin design. | |||||||
7) Illuminance of light source is uniform,error of UDLR is no more than 20%. | |||||||
Specification: | |||||||
1) Product size: 920 * 280 * 25mm (L*W*H) | |||||||
2) Standard measurement vision range: 4.0~5.3 | |||||||
3) Produced accroding international stand GB11533-89. | |||||||
4) Brightness is 120~300cd/m2, uniform and without a glance. | |||||||
5) With protection angles. |
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