Focused and collimated high intensity ?Upto 10,000 hours use Quartz anti glare system - narrow spot beam Upto 40,000 lux, 3600 foot candles, 114 lumens/watt 6000k true white (diagnostically optimised) 23.5 mm diameter, 16.5mm length 6.4g light enclosure, total 22g 11° ?Approx 2" at 50cm Lithium Polymer (high density) no memory loss Greater than 1000 charge-discharge cycles Approx 3.5 hours Approx 6 hours depending on intensity used 3.65 Volts / 700ma / 21 watt-hours 800mm x 500mm x 150mm 143g