the best Dental LED Headlight in the world,because --- the Brightest illumination intensity(32000LUX), the Lightest weight(11g), the Longest operating time(7hours), the smallest size(Dia.1.9x2.1cm), please help us to confirm all of them. Specification --- Light Source: 1 w LED-high efficiency & saving energy, Light Highest Illumination intensity: full variable intensity control, there are 2 kinds of adjusting level for your option. up to 15,000-20,000Lux@ feet (the first level output)-enough, up to 25,000-32,000Lux@ feet (the second level output)-remarketable, Continually Operating Time: up to 7 hours (highest in the first level output)-longest, up to 4 hours (highest in the second level output)-enough, Light Head Surface Temperature : 45 degree centigrade (highest in the first level output)-cool, 80 degree centigrade (highest in the second level output)-be careful, Color Temperature: 6000 K(pure white), Illumination Spot Size: 7 cm @ 40mm(appropriate), Light Head Weight : 11g (including mount,not including wire,lightweight), Light Head Diameter: 1.9cm, Light Head Length : 2.1cm(very small size), Battery: 2x1400mAh Rechargeable Lithium-Polymer Cells(only OEM for Japanese brand), Battery Lifetime : Approximately 500 charge/discharge cycles(high performance), Battery Case Weight : 113g(lightweight), Battery Case Dimensions: 7.5cm x 5.2cm x 2.1cm(small size), Battery charger: 1000mAh, 100-240V AC/50-60 Hz (adapter for all of the world power supply), Battery Charge Time: 90 minutes for 90% charge(very quick), Warranty: 1 year limited warranty(add cost, extend to be 2 years limited warranty). Feature. With our Dental LED Headlight, you'll experience enough brightness, shadow-free,long-lasting illumination with unrestricted mobility that enables you to work with precision while enjoying complete comfort, and improves overall ergonomics. Our led dental headlight's high edge-to-edge clarity, pure white beam to aid in dental color matching techniques, and hands-free operation,let you focus on your procedures, and allows you to go from patient to patient, without being tied down. While the powerful yet lightweight Lithium-Polymer battery system (only OEM for Japanese brand) provides working hours of uninterrupted usor several dentists use it continuously in the whole of working day. Mounting clip for Zeiss loupes,Orascoptic,Surgitel,PeriOptix,SheerVision, Designs for Vision,or SV Sport Frame,TTL, or headband. Revolutionary and Creative Dental LED Headlight wait for your verification, don't hesitate to contact us.