In technical terms, the Inova T3 with its 3.2-watt lamp puts out 85 lumens. This is more than several other lithium-battery-operated duty lights that are on the market.
Inova claims that the T3 puts out a beam of light that is effective out to 250 feet or, put another way, nearly a football field. I don't have the means to duplicate that test. But I can tell you that this handheld light throws enough photons to illuminate anything in my backyard, which measures 30 yards deep by 25 yards wide. The Inova T3 puts out more than enough light for daily use.
A unique feature of the Inova T3 is the prefocused light beam. Unlike many other lights, the T3's LED is focused and has a machined inner lens. This ensures that the light has an even, strong beam, which does not lose its coherence over distance. This is something that can't be said for many other lights on the market.
Generally, flashlights that produce as much light as the T3 have fairly short run times. But thanks to LED technology, the T3 offers two hours of constant output. Considering that most duty lights are used on/off fairly quickly, that should be several days or weeks of use depending on your shift and duty requirements.
Inova has considered the many aspects of law enforcement in developing its tactical/police line. These tools have a fairly long run time, throw out a lot of light, and are durable. Inova lights truly are up to meeting the requirements of daily duty use and daily use around the house, the work shed, or wherever you need a light that can be counted on.