Full Technical Test Data
UV Beast V3 385-395nm
Full published measurement and product information from our UV flashlight testing record.
Continuous Output Results
Published output, retention, and runtime values from the continuous-output test record.
UV Geek UV Energy Index
321
Output Retained — 10 Min
41%
Output Retained — 30 Min
39%
Continuous Operating Time
2 hr 39 min
Power Curve
UV Irradiance at Distance
UV irradiance measurements are shown in µW/cm².
| Distance | UV Irradiance |
|---|---|
| 10 ft | 620 µW/cm² |
| 20 ft | 152 µW/cm² |
| 30 ft | 65 µW/cm² |
| 40 ft | 37 µW/cm² |
| 50 ft | 28 µW/cm² |
| 60 ft | 16 µW/cm² |
Amazon Product Record
Exact Amazon Listing Name
uvBeast V3 385-395nm Black Light UV Flashlight | High Power Upgraded Triple Broad Band LEDs, For Professional/Commercial Use, USA Stock, Engineered by uvBeast
How UV Geek UV Energy Index Is Calculated
During the continuous-output test, the Linshang LS128 measures cumulative UV energy density. The instrument reports accumulated energy in millijoules per square centimeter (mJ/cm²).
Dividing by 1,000 converts the cumulative energy density from mJ/cm² to J/cm². The resulting numerical value is rounded to the nearest whole number and reported as the UV Geek UV Energy Index.
Calculation for this tested flashlight
320881 mJ/cm² ÷ 1,000 = 320.881 J/cm²
UV Geek UV Energy Index = 321
The UV Geek UV Energy Index is a derived comparison metric, not an industry-standard unit of measurement. It should not be confused with instantaneous UV irradiance measurements such as µW/cm².
Testing was conducted by UV Geek using consistent, documented procedures and factory-calibrated measurement equipment. Published results and derived metrics reflect the specific units tested, the recorded measurements, and UV Geek’s interpretation of those data.