This LED curing light utilizes blue LEDs with a wavelength of 420-480nm, perfect for dental resin curing. Features three distinct curing modes: strong light, flashing light, and gradual light. The long-lasting LEDs significantly reduce machine maintenance costs. Heat-free operation eliminates the need for a cooling fan, ensuring silent and vibration-free performance. The high-capacity lithium battery provides approximately 130-200 minutes of use on a full charge (4-8 hours). Intelligent battery detection alerts you with a flashing light when the battery is low. The lightweight, two-step design starts with gentle irradiation followed by rapid curing. This prevents excessive contraction of the resin surface, avoiding cracks between cavity edges. Battery (rechargeable): lithium battery Battery capacity: 2200mAh Battery voltage: 3.7V Curing time and depth: 5s/3mm Blue light wavelength: 420-480nm Blue light intensity: 1200-200mw/cm Color: gray Material: plastic Package Contents: 1 x Curing lamp set