Document Overview
Key Findings The ETENWOLF FL1 Kids Rechargeable Flashlight underwent a 1-hour surface temperature-rise test across four LED color modes (white, yellow, red, green) at ambient temperature of 30.5 °C; results are provided for reference only per internal standard. Test Type: Reliability Test — Thermal Rise…
- Document type
- Test Report
- Prepared by
- Ryan Cooper
- Published
- Last reviewed
- Topics
- Environmental Testing
Key Findings
The ETENWOLF FL1 Kids Rechargeable Flashlight underwent a 1-hour surface temperature-rise test across four LED color modes (white, yellow, red, green) at ambient temperature of 30.5 °C; results are provided for reference only per internal standard.
- Test Type: Reliability Test — Thermal Rise (温升测试)
- Standard: Internal standard
- Ambient Temperature: 30.5 °C
- Samples: 2 PCS (FL1 #10, FL1 #12)
- Highest Surface Temperature Recorded: 80.1 °C (Red LED, Sample #10 — Red LED position)
- Highest Temperature Rise Recorded: 49.6 K (Red LED, Sample #10)
- Verdict: For Reference Only (供参考)
Test Overview
| Field | Detail |
|---|---|
| Product No. / Name | FL1 Flashlight (FL1手电筒) |
| Report No. | 2025060801.0 |
| Test Date | 2025-06-08 |
| Test No. | — |
| Sample Quantity / No. | 2 PCS |
| Test Type | Reliability Test (可靠性测试) |
| Test Standard | Internal Standard (内部标准) |
| Test Purpose | Evaluate surface temperature rise of the flashlight during extended operation under normal working conditions |
| Acceptance Criterion | Ensure compliance with safety and performance requirements; prevent component damage caused by overheating |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Thermal Rise Tester (温升测试仪) |
| Test Modes | White LED, Yellow LED, Red LED, Green LED |
| Duration per Mode | 1 hour each, until temperature stabilizes |
| Ambient Temperature | 30.5 °C |
| Measurement Points | Metal Bottom, White LED, Yellow LED, Red LED, Green LED, Battery, U1, U2, U3, U4 |
Test Procedure
- Pre-Test: Allow samples to reach ambient temperature (30.5 °C). Confirm sample labeling (#10, #12). Connect thermal measurement probes to all defined measurement points (metal bottom, LED positions, battery, and ICs U1–U4).
- White LED Mode: Switch on white LED mode. Run continuously for 1 hour until temperature stabilizes. Record maximum temperature and calculate temperature rise (ΔT = Tmax − Tambient) at each measurement point.
- Yellow LED Mode: Switch to yellow LED mode. Repeat 1-hour stabilization run. Record all measurement point data.
- Red LED Mode: Switch to red LED mode. Repeat 1-hour stabilization run. Record all measurement point data.
- Green LED Mode: Switch to green LED mode. Repeat 1-hour stabilization run. Record all measurement point data.
- Post-Test: Power off samples. Verify recorded data integrity. Evaluate results against acceptance criterion (no overheating-induced component damage). Issue verdict.
Acceptance Criterion: Ensure all measured temperatures and temperature rises remain within levels that satisfy safety and performance requirements, preventing overheating-induced component damage.
Test Data & Results
| Sample ID | Parameter | Metal Bottom | White LED | Yellow LED | Red LED | Green LED | Battery | U1 | U2 | U3 | U4 | Ambient Temp (°C) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| FL1 Flashlight #10 | Max Temperature (°C) | 69.3 | 77.1 | 71.3 | 80.1 | 76.7 | 61.9 | 78.4 | 77.1 | 76.2 | 77.8 | 30.5 |
| FL1 Flashlight #10 | Temperature Rise (K) | 38.8 | 46.6 | 40.8 | 49.6 | 46.2 | 31.4 | 47.9 | 46.6 | 45.7 | 47.3 | — |
| FL1 Flashlight #12 | Max Temperature (°C) | 71.0 | 76.7 | 71.7 | 79.8 | 76.2 | 62.6 | 74.3 | 75.8 | 76.9 | 76.6 | 30.5 |
| FL1 Flashlight #12 | Temperature Rise (K) | 40.5 | 46.2 | 41.2 | 49.3 | 45.7 | 32.1 | 43.8 | 45.3 | 46.4 | 46.1 | — |
Observations: The red LED mode produced the highest surface temperature and temperature rise across both samples (up to 80.1 °C / 49.6 K on #10 and 79.8 °C / 49.3 K on #12). The battery position recorded the lowest temperature rise in both samples (~31–32 K). IC measurement points U1–U4 consistently reached 43–48 K above ambient. Both samples showed closely matched thermal behavior, indicating consistent product performance. Detailed time-series temperature data is provided in the sibling sheet (放电温升数据).
Conclusion
| Item | Detail |
|---|---|
| Result | For Reference Only (供参考) |
| Standard Applied | Internal Standard |
| Test Conditions | Ambient 30.5 °C; 1 hour per LED mode (white, yellow, red, green) until temperature stabilization |
| Samples Tested | 2 PCS — FL1 Flashlight #10, FL1 Flashlight #12 |
| Verdict | For Reference Only — no pass/fail judgment applied; data intended for engineering evaluation and design reference |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Approver (批准) | Li Guanghua | 2025-06-08 |
| Reviewer (审核) | Zhang Ronggui | 2025-06-08 |
| Tester (测试) | Mai Shaoqiang | 2025-06-08 |
| Field | Detail |
|---|---|
| Source File | FL1手电筒-温升报告-2025.6.8.xls |
| Sheet | 温升报告 (Sheet 1 of 2) |
| Report No. | 2025060801.0 |
Frequently Asked Questions
What is the maximum surface temperature of the ETENWOLF FL1 flashlight during operation?
During a 1-hour stabilization test at 30.5 °C ambient, the FL1 flashlight reached a maximum surface temperature of 80.1 °C at the red LED position (Sample #10). The battery position recorded the lowest temperature at 61.9–62.6 °C across both samples.
Which LED color mode generates the most heat on the FL1 flashlight?
Red LED mode produced the highest temperature rise in both test samples, reaching up to 49.6 K above ambient on Sample #10 and 49.3 K on Sample #12. White and green LED modes were comparably warm, while the battery compartment stayed coolest in all modes.
Does the FL1 flashlight pass the thermal rise safety test?
This test was conducted against an internal standard and the result is classified as For Reference Only — no formal pass or fail verdict was issued. The data is intended for engineering evaluation to verify that operating temperatures do not cause component damage during normal use.
Where can I find the detailed time-series temperature data for the FL1 flashlight thermal test?
The detailed discharge temperature rise data is recorded in the sibling sheet 放电温升数据 from the same test report file. A cross-linked article covering that dataset is available in the Related Products section below.
Related Products
Explore the full ETENWOLF FL1 Kids Flashlight product page and related test documentation:
- ETENWOLF FL1 Kids Rechargeable Flashlight — Product Page
- Sibling Test Sheet: 放电温升数据 (Discharge Thermal Rise Data) — detailed time-series temperature measurements from the same FL1 test session, covering all four LED color modes across both samples.