Document Overview
Key Findings The ETENWOLF CL5 Rechargeable Camping Lantern passed a 100 cm, 6-face free-drop test onto a concrete surface with no functional failures, no housing cracks, and no structural defects across all three samples. Product: CL5 Camping Lantern Manufacturer: BTK Drop Height: 100 cm Drop…
- Document type
- Certification Report
- Prepared by
- Ryan Cooper
- Published
- Last reviewed
- Topics
- Mechanical Reliability
Key Findings
The ETENWOLF CL5 Rechargeable Camping Lantern passed a 100 cm, 6-face free-drop test onto a concrete surface with no functional failures, no housing cracks, and no structural defects across all three samples.
- Product: CL5 Camping Lantern
- Manufacturer: BTK
- Drop Height: 100 cm
- Drop Faces: 6 (free fall from different angles onto concrete)
- Sample Quantity: 3 PCS
- Verdict: Reference Pass — appearance intact, lighting function normal, charging function normal
Test Overview
| Field | Detail |
|---|---|
| Test Type | Drop Test (Mechanical Reliability) |
| Report Number | 2025100401.0 |
| Date | 2025-10-04 |
| Product Name | CL5 Camping Lantern (CL5-露营灯) |
| Manufacturer | BTK |
| Surface Treatment | Not specified |
| Sample Quantity | 3 PCS |
| Test Reason | New Product (■ New Product) |
| Test Purpose | Evaluate the product’s resistance to drop impact and assess its reliability |
| Laboratory Temperature | 22 °C |
| Laboratory Humidity | 55% RH |
Test Equipment & Setup
| Parameter | Detail |
|---|---|
| Instrument Name | Single-Arm Drop Testing Machine |
| Drop Height | 100 cm |
| Number of Drops | 6 faces (free fall from different angles onto concrete surface) |
| Drop Surface | Concrete floor |
| Sample Weight | Not recorded |
| Test Class / Level | Not specified |
Test Procedure
- Pre-Test Inspection: Visually inspect all 3 samples for any pre-existing damage, cracks, or cosmetic defects. Confirm lighting and charging functions are operational before testing begins.
- Environment Verification: Confirm laboratory conditions are at 22 °C and 55% RH before proceeding.
- Equipment Setup: Mount the CL5 unit on the single-arm drop testing machine. Set drop height to 100 cm above the concrete surface.
- Drop Execution — Face 1: Release the sample in the first orientation (free fall). Retrieve and inspect.
- Drop Execution — Face 2: Repeat free fall from 100 cm in the second orientation. Retrieve and inspect.
- Drop Execution — Face 3: Repeat free fall from 100 cm in the third orientation. Retrieve and inspect.
- Drop Execution — Face 4: Repeat free fall from 100 cm in the fourth orientation. Retrieve and inspect.
- Drop Execution — Face 5: Repeat free fall from 100 cm in the fifth orientation. Retrieve and inspect.
- Drop Execution — Face 6: Repeat free fall from 100 cm in the sixth orientation. Retrieve and inspect.
- Post-Test Functional Check: Power on the lantern and verify illumination operates normally.
- Post-Test Charging Check: Connect the charger and verify charging function operates normally.
- Post-Test Visual Check: Inspect housing for cracks, splits, or cosmetic damage.
- Acceptance Criteria: No functional failure, no housing cracks, no structural defects.
Test Data & Results
| Check Item | Before Drop | Drop 1 | Drop 2 | Drop 3 | Drop 4 | Drop 5 | Drop 6 |
|---|---|---|---|---|---|---|---|
| Appearance | No damage, no cracks | Inspected | Inspected | Inspected | Inspected | Inspected | Inspected |
| Lighting Function | Normal | — | — | Normal | — | — | — |
| Charging Function | Normal | — | — | — | — | Normal | — |
Overall Test Result: All samples passed the drop test. No abnormal appearance observed. No functional failure recorded. Appearance: no damage, no cracks. Lighting: powers on and illuminates normally. Charging: charges normally.
Conclusion
| Field | Detail |
|---|---|
| Result | Reference (■ Reference / 参考) |
| Pass/Fail | Reference Pass |
| Standard / Requirement | No functional failure; no housing cracks; no structural defects |
| Test Conditions | 100 cm drop height, 6 faces, free fall onto concrete, 22 °C / 55% RH |
| Samples Tested | 3 PCS CL5 Camping Lantern |
| Verdict Summary | Samples passed drop test; appearance normal; all functions operational |
Document Information
| Role | Name (Pinyin) | Detail |
|---|---|---|
| Approval (核准) | Mai Shaoqiang | — |
| Review (审查) | Zhang Ronggui | — |
| Tester (测试员) | Li Guanghua | — |
| Form Number | BTK-R-Q-087A/1 | — |
| Page | 1.0 | — |
| Report Number | 2025100401.0 | — |
| Date | 2025-10-04 | — |
Frequently Asked Questions
What drop height was used in the ETENWOLF CL5 drop test?
The CL5 Camping Lantern was dropped from a height of 100 cm (approximately 39 inches) onto a concrete surface. Each of the 3 test samples underwent 6 drops from different face orientations, simulating real-world accidental drops during outdoor use.
Did the CL5 lantern pass the 6-face drop test?
Yes. All three CL5 samples passed the 6-face drop test with a Reference Pass verdict. After completing all drops, each unit showed no appearance damage, no housing cracks, normal lighting function on power-on, and normal charging function — meeting all acceptance criteria.
What does the Reference (参考) verdict mean in this test report?
A Reference verdict indicates the test was conducted as a benchmark evaluation for a new product rather than as a formal pass/fail certification against a published standard. The results confirm the product met the internal acceptance criteria and serve as a reliability reference for the engineering team.
What acceptance criteria must the CL5 meet in drop testing?
The CL5 must satisfy three criteria after all drop impacts: (1) no functional failure — the lantern must power on and illuminate normally; (2) no housing cracks or splits; and (3) no structural component defects. All three criteria were met in this test.