Nano 365 Series LED Blacklight Flashlight A portable, versatile, lightweight light source. The models in the series: IDX-500 Nominal Steady-State UV-A Intensity at 33,000 uW/cm2UV-A Coverage Area: 3.9 in (10 cm)Provides 2 hours of continuous inspection between charges Brochure IDX-400 Nominal Steady-State UV-A Intensity at 15,000 uW/cm2UV-A Coverage Area: 4.3 in (11 cm)Provides 5 hours of continuous inspection between charges Brochure IDX-300 Lightweight light source featuring 3 light modes (UV-A light, medium strength white light, high strength white light).Nominal Steady-State UV-A Intensity at 6,000 uW/cm2UV-A Coverage Area: 5.1 in (13 cm)Provides 4.5 Hours of continuous UV-A Light between charges Brochure IDX-200 Nominal Steady-State UV-A Intensity at 8,000 uW/cm2UV-A Coverage Area: 4.3 in (11 cm)Provides 50 minutes of continuous inspection with one set of AA batteries Brochure IDX-100 Nominal Steady-State UV-A Intensity at 1,200 uW/cm2UV-A Coverage Area: 7.5 in (19 cm)Provides 2 hours of continuous inspection between charges Brochure