Document Overview
Key Findings The CL5 Rechargeable Camping Lantern was evaluated for illuminance output across four lighting modes at 1 metre distance in a darkroom environment, with the flashlight spotlight mode delivering a peak reading of 4,690 lux. Product: CL5 Rechargeable Camping Lantern Report No.: 2025100401 Test…
- Document type
- Test Report
- Prepared by
- Ryan Cooper
- Published
- Last reviewed
- Topics
- Illuminance Testing
Key Findings
The CL5 Rechargeable Camping Lantern was evaluated for illuminance output across four lighting modes at 1 metre distance in a darkroom environment, with the flashlight spotlight mode delivering a peak reading of 4,690 lux.
- Product: CL5 Rechargeable Camping Lantern
- Report No.: 2025100401
- Test Date: 2025-10-04
- Samples: 3 PCS (1#, 2#, 3#)
- Peak Illuminance (Flashlight Spotlight): 4,690 lux (Sample 1#)
- Side White Light Range: 8.1 – 9.7 lux
- Side Red Light Range: 0.7 – 1.9 lux
- Flashlight UV/Purple Light Range: 47.5 – 50.4 lux
- Verdict: For Reference Only
Test Overview
| Field | Details |
|---|---|
| Test Type | Illuminance Testing (Reliability Test) |
| Test Standard | Internal Standard — Range and Light Intensity Uniformity Evaluation |
| Report No. | 2025100401 |
| Test Date | 2025-10-04 |
| Product No. / Name | CL5 Rechargeable Camping Lantern |
| Manufacturer | ETENWOLF |
| Sample Quantity / No. | 3 PCS (1#, 2#, 3#) |
| Test Environment | Room Temperature 23 °C, Relative Humidity 60 % |
| Test Purpose | Evaluate the maximum illuminance of the CL5 camping lantern |
Test Equipment & Setup
| Item | Details |
|---|---|
| Test Equipment | Illuminance Meter (unit: lux, LX) |
| Measurement Distance | 1 metre |
| Test Location | Darkroom (controlled low-ambient-light environment) |
| Temperature | 23 °C |
| Relative Humidity | 60 % |
| Measurement Axis | Optical axis / maximum illuminance point of each light mode |
Test Procedure
- Pre-test: Confirm the illuminance meter is calibrated and functioning. Prepare the darkroom to eliminate ambient light interference. Label the three samples 1#, 2#, and 3#.
- Setup: Position each sample at a distance of 1 metre from the illuminance meter sensor, aligned along the optical axis of the light source being measured.
- Procedure — Side White Light: Activate the side white light mode on each sample in turn. Record the maximum lux reading on the optical axis for 1#, 2#, and 3#.
- Procedure — Side Red Light: Activate the side red light mode on each sample in turn. Record the maximum lux reading for 1#, 2#, and 3#.
- Procedure — Flashlight Spotlight: Activate the flashlight (spotlight/focused beam) mode on each sample in turn. Record the maximum lux reading for 1#, 2#, and 3#.
- Procedure — Flashlight UV/Purple Light: Activate the UV/purple light mode on each sample in turn. Record the maximum lux reading for 1#, 2#, and 3#.
- Post-test: Record all readings. Capture test photographs. Evaluate results against the acceptance criteria.
- Acceptance Criteria: Range and light intensity uniformity evaluation per internal standard. Results are recorded for reference; no pass/fail threshold defined in this report.
Test Data & Results
| Sample No. | Distance (m) | Light Mode | Sample 1# (lux) | Sample 2# (lux) | Sample 3# (lux) |
|---|---|---|---|---|---|
| 1# – 3# | 1 | Side White Light | 8.9 | 8.1 | 9.7 |
| 1# – 3# | 1 | Side Red Light | 0.7 | 0.8 | 1.9 |
| 1# – 3# | 1 | Flashlight Spotlight | 4690 | 4290 | 4200 |
| 1# – 3# | 1 | Flashlight UV / Purple Light | 50.4 | 48.0 | 47.5 |
Observations: The flashlight spotlight mode produces illuminance values several orders of magnitude higher than the lantern side-light modes, consistent with a focused narrow-beam optical design. The side red light mode returns the lowest readings across all three samples (0.7–1.9 lux), as expected for a low-intensity red mode typically used for night-vision preservation. Minor sample-to-sample variation is observed in all modes; the largest absolute spread occurs in the spotlight mode (490 lux between highest and lowest), while the largest relative spread occurs in the side red light mode. Test photographs were taken for 1-metre side white light, 1-metre side red light, 1-metre flashlight spotlight, and 1-metre flashlight UV/purple light configurations (page 9 of source document).
Conclusion
| Light Mode | Standard | Test Conditions | Samples Tested | Illuminance Range (lux) | Verdict |
|---|---|---|---|---|---|
| Side White Light | Internal Standard | 1 m, darkroom, 23 °C, 60 % RH | 3 PCS | 8.1 – 9.7 | For Reference Only |
| Side Red Light | Internal Standard | 1 m, darkroom, 23 °C, 60 % RH | 3 PCS | 0.7 – 1.9 | For Reference Only |
| Flashlight Spotlight | Internal Standard | 1 m, darkroom, 23 °C, 60 % RH | 3 PCS | 4200 – 4690 | For Reference Only |
| Flashlight UV / Purple Light | Internal Standard | 1 m, darkroom, 23 °C, 60 % RH | 3 PCS | 47.5 – 50.4 | For Reference Only |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By | Li Guanghua | 2025-10-04 |
| Checked By | Zhang Ronggui | 2025-10-04 |
| Approved By | Mai Shaoqiang | 2025-10-04 |
Source File: CL5露营灯-照度测试2025.10.4.xlsx | Sheet: 照度值测试 (Sheet 1 of 1) | Author: Ryan Cooper
Frequently Asked Questions
What does the illuminance test measure for the CL5 camping lantern?
The test measures illuminance in lux — the amount of luminous flux received per unit area — at a fixed distance of 1 metre along the optical axis of each light mode. It evaluates how bright each mode is and assesses the range and light intensity uniformity of the CL5, helping buyers understand real-world brightness performance across all four modes.
Why is the flashlight spotlight reading so much higher than the side lantern modes?
The flashlight spotlight uses a focused, narrow-beam optic that concentrates all available light into a small target area, producing high lux readings (4,200–4,690 lux at 1 m). The side lantern modes radiate light over a much wider 360-degree angle, so any single point in front of the unit receives far less intensity — 8.1–9.7 lux for white and 0.7–1.9 lux for red. Higher lux in spotlight mode does not mean more total light energy; it means more concentrated light in one direction.
What does “For Reference Only” mean as the test verdict?
The report uses the designation For Reference Only (供参考) rather than Pass or Fail. This indicates the test was conducted to document and characterise the CL5’s illuminance output against an internal standard, rather than to certify compliance with an external regulatory threshold. The data serves as a product specification baseline and quality benchmark for the manufacturer.
How does the CL5’s illuminance compare across its four light modes?
At 1 metre the CL5 delivers approximately 8–10 lux from its side white lantern, under 2 lux from its side red mode, 47–50 lux from its UV/purple flashlight, and 4,200–4,690 lux from its focused spotlight beam. Each mode serves a different use case: the lantern modes provide ambient camp lighting, the red mode preserves night vision, the UV mode is suited to fluorescence tasks, and the spotlight provides a powerful directed beam for navigation or signalling.
Related Products
Explore the CL5 Rechargeable Camping Lantern on the ETENWOLF shop. See all test reports for this model and other lighting gear products in the ETENWOLF Lighting Gear series below.
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