Document Overview
Key Findings The ETENWOLF FL1 Kids Rechargeable Flashlight passed all operating temperature evaluations: samples discharged normally at −20 °C and 70 °C, and charged normally at 0 °C and 45 °C, with no change in brightness across any mode and all button functions switching correctly…
- Document type
- Test Report
- Prepared by
- Ryan Cooper
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The ETENWOLF FL1 Kids Rechargeable Flashlight passed all operating temperature evaluations: samples discharged normally at −20 °C and 70 °C, and charged normally at 0 °C and 45 °C, with no change in brightness across any mode and all button functions switching correctly throughout.
- Product: ETENWOLF FL1 Kids Rechargeable Flashlight
- Report No.: 2025060501
- Test Date: 2025-06-05
- Samples: 3 pcs (LF1-7# – LF1-9#)
- Discharge range: −20 °C and 70 °C (2 h soak each)
- Charge range: 0 °C and 45 °C (2 h soak each)
- Verdict: For Reference Only (■供参考)
Test Overview
| Field | Details |
|---|---|
| Test Type | Operating Temperature (Reliability Test) |
| Test Standard | Internal Control Standard — samples operate normally at specified ambient temperatures |
| Report No. | 2025060501 |
| Test Date | 2025-06-05 |
| Product No. / Name | ETENWOLF FL1 Kids Rechargeable Flashlight (儿童手电筒) |
| Model / Type Specification | FL1 |
| Sample Quantity / No. | 3 pcs — LF1-7#, LF1-8#, LF1-9# |
| Test Purpose | Simulate extreme environmental conditions and verify brightness output at every brightness level and normal button-function switching |
| Room Temperature | 23 °C |
| Room Humidity | 60 % |
Test Equipment & Setup
| Equipment / Parameter | Details |
|---|---|
| Climate Chamber (恒温恒湿箱) | Constant-temperature and constant-humidity test chamber |
| Charger (充电器) | Standard product charger |
| Power Meter (功率计) | Used to monitor electrical parameters during charge/discharge phases |
| Ambient Temperature | 23 °C |
| Ambient Humidity | 60 % |
| Soak Duration (each condition) | 2 hours |
| High-Temperature Discharge Set Point | 70 °C |
| Low-Temperature Discharge Set Point | −20 °C |
| Low-Temperature Charge Set Point | 0 °C |
| High-Temperature Charge Set Point | 45 °C |
Test Procedure
- Pre-test: Confirm samples LF1-7#, LF1-8#, and LF1-9# are fully functional at room temperature (23 °C, 60 % RH) before conditioning.
- Discharge — Low Temperature: Place samples in the climate chamber set to −20 °C. Allow samples to stabilise for 2 hours under discharge conditions. Power on each sample; verify illumination at every brightness level and confirm all button-function modes switch correctly.
- Discharge — High Temperature: Set the climate chamber to 70 °C. Allow samples to stabilise for 2 hours under discharge conditions. Power on each sample; verify illumination at every brightness level and confirm all button-function modes switch correctly.
- Charge — Low Temperature: Set the climate chamber to 0 °C. Allow samples to stabilise for 2 hours under charge conditions. Connect charger; verify illumination at every brightness level and confirm all button-function modes switch correctly.
- Charge — High Temperature: Set the climate chamber to 45 °C. Allow samples to stabilise for 2 hours under charge conditions. Connect charger; verify illumination at every brightness level and confirm all button-function modes switch correctly.
- Post-test inspection: Remove samples from chamber, allow return to room temperature, and inspect for any physical damage, leakage, or functional anomaly.
- Acceptance Criteria: Samples must power on and illuminate normally at all brightness levels, and all button functions must switch correctly, under every specified temperature condition.
Test Data & Results
| Sample ID | Test Condition | Issue Description / Observations |
|---|---|---|
| LF1-7# – LF1-9# | High-Temperature Discharge Test (70 °C) | After 2 hours of storage at high temperature 70 °C, samples powered on; brightness at every mode showed no change; all button-function mode switching operated normally. |
| LF1-7# – LF1-9# | Low-Temperature Discharge Test (−20 °C) | After 2 hours of storage at low temperature −20 °C, samples powered on; brightness at every mode showed no change; all button-function mode switching operated normally. |
| LF1-7# – LF1-9# | Low-Temperature Charge Test (0 °C) | After 2 hours of storage at low temperature 0 °C, samples powered on; brightness at every mode showed no change; button-function mode switching operated normally. |
| LF1-7# – LF1-9# | High-Temperature Charge Test (45 °C) | After 2 hours of storage at high temperature 45 °C, samples powered on; brightness at every mode showed no change; button-function mode switching operated normally. |
Picture labels recorded in report: High-Temperature Discharge Test | Low-Temperature Discharge Test | Low-Temperature Charge Test | High-Temperature Charge Test
Overall result statement: FL1 flashlight samples powered on and illuminated normally in climate environments of −20 °C and 70 °C (discharge conditions), and charged normally in climate environments of 0 °C and 45 °C (charge conditions).
Conclusion
| Field | Details |
|---|---|
| Result | ■ For Reference Only (供参考) |
| Pass / Fail | Neither formal Pass nor Fail marked — result issued for reference |
| Standard Applied | Internal Control Standard — normal operation at specified ambient temperatures |
| Test Conditions | Discharge: −20 °C and 70 °C; Charge: 0 °C and 45 °C; soak 2 h each; room baseline 23 °C / 60 % RH |
| Samples Tested | 3 pcs — LF1-7#, LF1-8#, LF1-9# |
| Verdict | All samples functioned normally across all four temperature conditions with no brightness degradation or button-function anomalies observed |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-06-05 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-06-05 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-06-05 |
| Form No. (表单编号) | BTK-R-Q142/AO | |
Frequently Asked Questions
What operating temperature range has the ETENWOLF FL1 flashlight been tested to?
The FL1 has been tested for discharge (use) between −20 °C and 70 °C, and for charging between 0 °C and 45 °C. After a 2-hour soak at each extreme, all three sample units powered on and illuminated normally with no brightness loss across any mode.
Does extreme cold or heat affect the brightness levels of the FL1 flashlight?
No. In all four test conditions — low-temperature discharge at −20 °C, high-temperature discharge at 70 °C, low-temperature charge at 0 °C, and high-temperature charge at 45 °C — the brightness at every mode showed no measurable change and all button functions switched correctly.
Can the ETENWOLF FL1 be charged in cold environments?
Yes. The FL1 was verified to charge normally at 0 °C after a 2-hour soak. Charging is supported in the range of 0 °C to 45 °C per the internal control standard validated in report 2025060501.
What test standard governs the FL1 operating temperature evaluation?
The test follows ETENWOLF’s internal control standard, which requires samples to operate normally — maintaining consistent brightness output and correct button-function switching — at all specified ambient temperatures. The test was conducted on 2025-06-05 and the results are issued for reference (供参考).