Document Overview
Key Findings The CL3 camping lantern passed the ISTA-2A transport vibration test with no structural damage, no loose internal components, and stable lighting function after 1 hour of random-mode vibration across all three axes. Test Standard: ISTA-2A Test Mode: Random vibration, axes X / Y…
- Document type
- Test Report
- Prepared by
- Ryan Cooper
- Published
- Last reviewed
- Topics
- Mechanical Reliability
Key Findings
The CL3 camping lantern passed the ISTA-2A transport vibration test with no structural damage, no loose internal components, and stable lighting function after 1 hour of random-mode vibration across all three axes.
- Test Standard: ISTA-2A
- Test Mode: Random vibration, axes X / Y / Z
- Duration: 1 hour
- Frequency: 4 Hz
- Speed (CMP): 240 G
- Amplitude: 25.4 mm
- Samples: 2 PCS
- Verdict: Pass
Test Overview
| Field | Detail |
|---|---|
| Test Type | Vibration Test (Transport Simulation) — Mechanical Reliability |
| Standard | ISTA-2A |
| Report No. | 20260420-001 |
| Date | 2026-04-20 |
| Page | 1 |
| Product | CL3 Camping Lantern |
| Manufacturer | BTK |
| Surface Treatment | / |
| Sample Quantity | 2 PCS |
| Test Reason | New Product |
| Test Objective | To verify the resistance of the sample under transportation and use-environment vibration conditions |
| Laboratory Temperature | 30 °C |
| Laboratory Humidity | 55 % RH |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Instrument | Vibration Testing Machine |
| Test Mode | Random Mode |
| Test Duration | 1 H |
| Random Directions | X, Y, Z |
| Vibration Frequency | 4 Hz |
| Test Speed (CMP) | 240 G |
| Vibration Amplitude | 25.4 mm |
| Test Class | ISTA-2A |
Test Procedure
- Pre-Test: Inspect each of the 2 sample units for appearance, verify lighting function is normal, and confirm charging function is normal. Document initial condition with photographs (vibration placement layout and vibration control chart).
- Setup: Place packaged sample on the vibration testing machine platform in accordance with the ISTA-2A protocol. Secure sample to simulate real transport conditions.
- Vibration Test: Run the vibration testing machine in Random mode at 4 Hz, amplitude 25.4 mm, speed 240 G, cycling through X, Y, and Z axes for a total duration of 1 hour.
- Post-Test Inspection: Remove sample from the machine. Inspect the outer housing for visible damage. Check all internal components for looseness or structural failure. Verify lighting operation and charging function.
- Acceptance Criteria: Packaging must effectively protect the product throughout simulated transport. The product shall show no significant exterior damage, no loose or broken internal parts, and no functional failures after the test.
Test Data & Results
| Check Item | Pre-Test Condition | Post-Test Condition |
|---|---|---|
| Outer Housing / Main Body | Normal — no damage | No significant damage observed |
| Internal Components | Secure, no looseness | Fastened, no looseness detected |
| Lighting Function | Normal illumination confirmed | Stable operation, no functional failure |
| Charging Function | Charging confirmed normal | No functional failure |
Observations: After simulated transport vibration testing, the CL3 camping lantern body showed no obvious physical damage. All internal parts remained tightly secured with no looseness. The lighting operated stably and no functional defects were detected. Pre-test photographs confirmed normal vibration placement layout and a valid vibration control chart.
Conclusion
| Field | Detail |
|---|---|
| Result | Pass |
| Standard | ISTA-2A |
| Test Conditions | Random mode; 4 Hz; 240 G; 25.4 mm amplitude; X/Y/Z axes; 1 hour; 30 °C / 55 % RH |
| Samples Tested | 2 PCS — CL3 Camping Lantern |
| Manufacturer | BTK |
| Verdict | ✅ Pass — product and packaging adequately protect against transport vibration per ISTA-2A |
Document Information
| Role | Name (Pinyin) |
|---|---|
| Approval (核准) | Mai Shaoqiang |
| Review (审查) | Zhang Ronggui |
| Tester (试验人) | Li Guanghua |
| Form Number | BTK-R-Q-087A/1 |
Frequently Asked Questions
What does ISTA-2A cover for a product like the CL3 lantern?
ISTA-2A (International Safe Transit Association Procedure 2A) is a packaged-product test sequence designed to simulate the hazards encountered during normal distribution and transport. For a product like the CL3 camping lantern it covers random vibration across multiple axes to confirm that both the packaging and the product can survive typical shipping conditions without damage or functional failure.
Why are three axes (X, Y, Z) used in the vibration test?
Real-world transport exposes a package to vibration from multiple orientations — vertical bouncing on a truck bed, lateral sway around corners, and longitudinal movement during braking. Testing all three axes ensures no single orientation reveals a weakness that could cause damage in actual distribution.
What does a 240 G CMP test speed indicate?
CMP (Cumulative Motion Profile) expressed in G-force units describes the overall severity of the vibration energy applied. A value of 240 G reflects a moderate-to-high transport stress level, representative of ground freight conditions, and is used to confirm the product can withstand realistic worst-case shipping environments.
What constitutes a failure in this type of transport vibration test?
A failure would be recorded if, after the vibration sequence, the product shows significant exterior cracks or deformation, any internal component is found loose or broken, or any primary function — lighting or charging — no longer operates correctly. The CL3 passed all three criteria in this evaluation.
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