1. Ergonomic and unique optical designed of bleaching adaptor 2. High uniformity of light output 3. Durable and flexible gooseneck tube for 3-D position operation 4. Versatile selection for curing time presetting 5. Digital indicator with audio feedback 6. Quiet and powerful fan for best cooling 7. 100 to 240 Volts AC 50/60 HZ suitable for universal use 8. Compact and lightweight for easy operation between rooms 9. Perfect for a tight space dental clinic