Uniform Square Spot:A precisely focused light provides enhanced visibility during procedures Advanced Capacitive Touch Controls:Power light on and off with ease between procedures and patient consultations. Ergonomic Design:Featuring an innovative design, the Mini dispenses weight evenly across the frame--minimizing concentrated facial pressure. Universal Application Integrating with virtually any loupe or eyewear model, the headlamp can quickly and easily be attached with the universal clip. Universal Clip parts: It can be attached on varios kinds of frames. Prismatic loupes. Attention: The Glasses are not included. The headlight uses the rechargeable lithium battery, light weight, longevity and the more comfortable carry, it is suitable for all kinds of surgical operation. LED:3w Life span: 100,000 h Intensity: 15000-30000 lux Working time: 1.5 hours(max power) Charge time: 2 hours Light Spot: Square Spot size:25cm of distance & 7cm Color Temperature:4000K~5700~6300K Light Size:16X18mm (without holder) Cycle life:Over 700cycles Battery Capacity:3.7V 600mAh Power level:4 leds (100%,75%,50%,25%) Control brightness push-button:25%,50%,75%,100%,off Package List - 1 x Light Source - 1 x Charger