LED Eye Chart Light Box, LED Vision Test Chart, Clear Sight Mark, Two Sight Marks, Two Power Supplies, for Schools, Clinics, Home Use, Professional Eye Exam Tool

Product specifications: Product name: LED Eye Chart Light Box Average brightness of white background: 80-320cd/m² Surface uniformity of vision: ≥0.85 Output voltage: DC5V 1000mA Applicable range: 25-30cm test Packaging weight: 0.5kg Product size: 19.5*14.5*1cmPackage includes: LED Eye Chart Light Box*1

• EXQUISITE DESIGN AND CONVENIENT OPERATION: beautiful appearance, easy to carry, and evenly illuminated by LED light source. The four-corner magnetic suction and detachable cover design support flexible replacement of two horizontal and vertical vision charts to meet diverse testing needs.
• RELIABLE PERFORMANCE AND ACCURATE TESTING: The magnetic suction panel is easy to operate, the back power supply design, and the horizontal and vertical modes can be switched flexibly. The display brightness is moderate and the sight mark is clear to ensure high test accuracy.
• COMPREHENSIVE SIGHT MARKS AND COMPLETE FUNCTIONS: It provides red and green sight marks, ray astigmatism sight marks, far point astigmatism sight marks and cross sight marks, which can detect myopia, hyperopia, astigmatism and other problems, and help accurately evaluate vision correction.
• DUAL POWER SUPPLY DESIGN, FLEXIBLE USE: It supports battery and power supply, and is highly portable. Note: The battery needs to be removed when powered by the power supply to avoid short circuit damage to the device.
• INTEGRATED VISION TEST SOLUTION: Combining dual sight mark design with clear display function, it fully covers vision testing needs and ensures a safe and reliable use experience.