... plastic angles to protect, safe and practical3. We use the high-quality guide light panel, its advantage is that the luminance is ... . longer life-span than traditional Light Box4. adopt high purity optical acrylic sheet5. use high-tech PCB wirepanel.6. higher operating rate and ... light box leakage harm to human use4, long life, using high-quality LED light source, continuous light 50,000 hours;5, super ...