UV Test Results
Discover the Best Flashlights for Your Needs
Is your flashlight performing the way it should? Compare measured UV performance between two tested flashlights and see how they performed under the same test methods.
Want to do the homework yourself? Dig into the data below. Or skip it—we already did the hard part and laid out the lights that stood out. Want to check our work? The charts aren't going anywhere.
Compare Two UV Flashlights
Choose any two tested models. The results below update automatically.
Sustained UV Output
UV Strength at Distance
Measured UV irradiance at each distance. Higher readings mean more UV reached the sensor.
| Distance | ||
|---|---|---|
| 10 ft | ||
| 20 ft | ||
| 30 ft | ||
| 40 ft |
10 ft
30 ft
Distance readings are shown in µW/cm².
Test Summary
| Metric | ||
|---|---|---|
| UV Energy Index | ||
| Output Retained — 30 Min | ||
| Continuous Operating Time |
UV Energy Index
Output Retained — 30 Min
Continuous Operating Time
UV Energy Index = measured LS128 total UV energy divided by 1,000 and rounded to the nearest whole number for easier comparison. Higher numbers indicate more cumulative UV delivered during the continuous-output test.
Continuous Operating Time measures how long the flashlight remained powered on before shutdown, capped at 12 hours. It does not indicate UV output level or useful UV intensity.
Full Test Results
Want the complete data? Open either flashlight’s full technical test record.
Want the Shortcut?
See which tested lights stood out for different jobs and budgets.
Best UV Flashlight Picks →