Document Overview
Key Findings The ETENWOLF FL2 flashlight was evaluated for illuminance output in flood and spotlight modes at 1 m, and laser spot dimensions at 5 m, with all three samples performing consistently — results recorded for reference. Product: ETENWOLF FL2 Flashlight Report No.: 2025103101 Test…
- Document type
- Test Report
- Prepared by
- Ryan Cooper
- Published
- Last reviewed
- Topics
- Illuminance Testing
Key Findings
The ETENWOLF FL2 flashlight was evaluated for illuminance output in flood and spotlight modes at 1 m, and laser spot dimensions at 5 m, with all three samples performing consistently — results recorded for reference.
- Product: ETENWOLF FL2 Flashlight
- Report No.: 2025103101
- Test Date: 2025-10-31
- Samples: 3 PCS (units 4#, 5#, 6#)
- Flood illuminance @ 1 m: 219 – 231 lux across samples
- Spot illuminance @ 1 m: 1,520 – 1,800 lux across samples
- Laser spot length @ 5 m: 12.6 – 15.9 mm
- Laser spot width @ 5 m: 3.7 – 4.6 mm
- Overall verdict: For reference only
Test Overview
| Field | Detail |
|---|---|
| Test Type | Illuminance Testing (Reliability Test) |
| Report No. | 2025103101 |
| Test Date | 2025-10-31 |
| Product No. / Name | Flashlight |
| Model | ETENWOLF FL2 |
| Sample Quantity / No. | 3 PCS (4#, 5#, 6#) |
| Test Standard | Internal Standard — Range & Luminous Intensity Uniformity Evaluation |
| Test Purpose | Evaluate the illuminance values and laser spot diameter of the FL2 flashlight |
| Test Conditions | Room Temperature: 23 °C, Relative Humidity: 60% |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Illuminance Meter (Lux Meter, unit: LX) |
| Test Environment | Dark room (anechoic lighting environment) |
| Measurement Distance — Illuminance | 1 m from light source along optical axis |
| Measurement Distance — Laser Spot | 5 m from laser source |
| Temperature | 23 °C |
| Relative Humidity | 60% |
Test Procedure
- Pre-test: Confirm samples 4#, 5#, and 6# are fully charged and functional. Set up the dark room environment at 23 °C and 60% RH.
- Illuminance test (flood & spot, 1 m): Position the illuminance meter at 1 m from the flashlight along the optical axis. Activate flood light mode; record the maximum lux value at the beam center. Repeat for spotlight mode.
- Laser spot measurement (5 m): Project the laser beam onto a flat target surface at 5 m. Measure and record the length and width of the laser spot center in millimeters.
- Repeat: Perform all measurements for each of the three samples (4#, 5#, 6#).
- Post-test: Document all readings, photographs, and observations. Evaluate against acceptance criteria.
- Acceptance criteria: Results recorded for reference only (■ For reference only). No pass/fail threshold applied in this report cycle.
Test Data & Results
Illuminance Measurements at 1 m (Flood & Spotlight)
| Sample No. | Distance (m) | Light Mode | Illuminance (LUX) |
|---|---|---|---|
| 4# | 1 | Flood Light | 219 |
| 5# | 1 | Flood Light | 215 |
| 6# | 1 | Flood Light | 231 |
| 4# | 1 | Spotlight | 1,520 |
| 5# | 1 | Spotlight | 1,800 |
| 6# | 1 | Spotlight | 1,764 |
Laser Spot Diameter Measurements at 5 m
| Sample No. | Distance (m) | Light Mode | Spot Length (mm) | Spot Width (mm) |
|---|---|---|---|---|
| 4# | 5 | Laser | 12.6 | 4.2 |
| 5# | 5 | Laser | 15.9 | 4.6 |
| 6# | 5 | Laser | 13.7 | 3.7 |
Observations: Flood illuminance across the three samples ranged from 215 to 231 lux, showing good consistency (spread of 16 lux, ~7%). Spotlight illuminance ranged from 1,520 to 1,800 lux; sample 5# returned the highest reading. Laser spot dimensions at 5 m were consistent in width (3.7 – 4.6 mm) with slightly more variation in length (12.6 – 15.9 mm), consistent with typical elliptical laser beam profiles. Test images were captured for the 1 m illuminance test and the 5 m laser test as supplementary documentation.
Conclusion
| Parameter | Standard / Criteria | Test Conditions | Samples | Verdict |
|---|---|---|---|---|
| Flood Illuminance @ 1 m | Internal Standard | 23 °C, 60% RH, dark room, 1 m | 4#, 5#, 6# | For Reference Only |
| Spotlight Illuminance @ 1 m | Internal Standard | 23 °C, 60% RH, dark room, 1 m | 4#, 5#, 6# | For Reference Only |
| Laser Spot Diameter @ 5 m | Internal Standard | 23 °C, 60% RH, dark room, 5 m | 4#, 5#, 6# | For Reference Only |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By | Li Guanghua | 2025-10-31 |
| Checked By | Zhang Ronggui | 2025-10-31 |
| Approved By | Mai Shaoqiang | 2025-10-31 |
| Field | Detail |
|---|---|
| Source File | FL2手电筒-照度激光测试_2025.10.31.xlsx |
| Sheet Name | 照度值测试 (Illuminance Value Test) |
| Report No. | 2025103101 |
| Total Sheets | 1 |
Frequently Asked Questions
What is the illuminance of the ETENWOLF FL2 flashlight in spotlight mode?
At a distance of 1 m along the optical axis in a dark room, the FL2 flashlight produced spotlight illuminance readings of 1,520 lux (sample 4#), 1,800 lux (sample 5#), and 1,764 lux (sample 6#) — averaging approximately 1,695 lux across the three tested units.
How large is the FL2 laser spot at 5 meters?
At 5 m, the FL2 laser spot measured 12.6 – 15.9 mm in length and 3.7 – 4.6 mm in width across three samples, producing an elongated elliptical beam profile typical of focused laser emitters.
What flood light illuminance does the FL2 flashlight produce?
In flood light mode at 1 m, the FL2 produced 219 lux, 215 lux, and 231 lux for samples 4#, 5#, and 6# respectively — a tight range indicating consistent performance across units.
Did the ETENWOLF FL2 pass the illuminance test?
This test cycle was conducted against an internal standard for range and luminous intensity uniformity evaluation. The results are recorded as "For reference only" — no formal pass/fail threshold was applied, and all data is retained as baseline performance documentation for the FL2 model.