FL1 Kids Rechargeable Flashlight — Transport Vibration Test Report (ISTA-2A)

Document Overview

Key Findings The FL1 Kids Rechargeable Flashlight passed a 1-hour random vibration test per ISTA-2A, with all 3 samples retaining full lighting function, responsive button switching, and normal charging performance after exposure. Test Type: Transport Vibration (Mechanical Reliability) Standard: ISTA-2A Report No.: 2025060801 Test Date:…

Document type: Test Report
Prepared by: Ryan Cooper
Published: July 21, 2026
Last reviewed: July 21, 2026
Topics: Mechanical Reliability

Key Findings

The FL1 Kids Rechargeable Flashlight passed a 1-hour random vibration test per ISTA-2A, with all 3 samples retaining full lighting function, responsive button switching, and normal charging performance after exposure.

Test Type: Transport Vibration (Mechanical Reliability)
Standard: ISTA-2A
Report No.: 2025060801
Test Date: 2025-06-08
Samples: 3 PCS
Duration: 1 hour
Test Mode: Random, axes X / Y / Z
Vibration Frequency: 4 Hz
Test Speed (CMP): 240 G
Vibration Amplitude: 25.4 mm
Verdict: Pass

Test Overview

Field	Detail
Test Type	Transport Vibration Test (Mechanical Reliability)
Standard / Test Class	ISTA-2A
Report No.	2025060801
Page	1
Date	2025-06-08
Product Name	FL1 Kids Rechargeable Flashlight
Model	FL1
Manufacturer	BTK
Surface Treatment	/
Sample Quantity	3 PCS
Test Reason	New Product
Test Objective	To verify the resistance of the sample in transportation and use environments.
Laboratory Temperature	22 °C
Laboratory Humidity	55% RH

Test Equipment & Setup

Item	Detail
Instrument Name	Vibration Testing Machine
Test Mode	Random Mode
Test Duration	1 Hour
Vibration Axes	Random Direction: X, Y, Z
Vibration Frequency	4 Hz
Test Speed (CMP)	240 G
Vibration Amplitude	25.4 mm

Test Procedure

Pre-Test: Confirm laboratory environment meets required conditions (temperature 22 °C, humidity 55% RH). Inspect all 3 sample units for appearance integrity and verify that lighting function, mode switching, and charging operate normally before mounting.
Sample Placement: Mount samples on the vibration testing machine platform in the designated orientation (振动摆放 — vibration placement setup).
Vibration Execution: Run the vibration test machine in Random Mode for 1 hour across axes X, Y, and Z simultaneously. Maintain vibration frequency at 4 Hz, test speed (CMP) at 240 G, and amplitude at 25.4 mm throughout the test duration.
In-Test Monitoring: Monitor the vibration control chart (振动控制图) continuously to confirm test parameters remain within specification.
Post-Test Inspection: After 1 hour, remove samples and inspect: (a) appearance for any physical damage, (b) button switch responsiveness, (c) lighting brightness and mode switching under normal operation, and (d) charging function.
Acceptance Criteria: Samples pass if appearance shows no failure, the illumination lighting function operates normally, button switches are responsive, and charging is normal after the vibration test.

Test Data & Results

Check Item	Pre-Test Observation	Post-Test Observation	Result
Appearance	Normal	No damage observed	Pass
Lighting Brightness	Normal	Normal illumination brightness after transport vibration (运输后照明亮度正常)	Pass
Mode Switching	Normal	Mode switching brightness and illumination normal after 1-hour vibration	Pass
Button Switch Responsiveness	Normal	Button switch sensitive and responsive after test	Pass
Charging Function	Normal	Charging normal after test (充电正常)	Pass

Test Result Summary: After the 1-hour transport vibration test, all 3 samples exhibited responsive button switching, normal mode switching, and normal lighting brightness illumination. No failures were recorded in appearance or functional performance.

Judgment: ■ Pass □ Fail □ Reference

Conclusion

Field	Detail
Result	Pass
Standard	ISTA-2A
Test Conditions	Random mode; 1 hour; X/Y/Z axes; 4 Hz; 240 G CMP; 25.4 mm amplitude; 22 °C; 55% RH
Samples Tested	3 PCS — FL1 Kids Rechargeable Flashlight (BTK)
Verdict	All samples passed. Button switch sensitivity, mode switching, lighting brightness, and charging function all remained normal after 1 hour of transport vibration exposure. No appearance or functional failures detected.

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 the ISTA-2A standard cover for this vibration test?

ISTA-2A (International Safe Transit Association Procedure 2A) is a transport simulation standard designed to evaluate whether packaged products can withstand the mechanical stresses encountered during distribution and shipping. For the FL1 flashlight, this included random vibration across three axes (X, Y, Z) to simulate real-world transit conditions such as truck transport, handling, and warehousing.

What test parameters were used and why do they matter?

The test ran in random mode for 1 hour at a vibration frequency of 4 Hz, with a test speed (CMP) of 240 G and an amplitude of 25.4 mm. These parameters simulate the combined mechanical stress a product experiences across its typical shipping journey. Running the test in all three axes (X, Y, Z) ensures that no orientation of the product is left unchecked.

What would cause a sample to fail this test?

A sample would be judged as failed if any of the following occurred after the vibration exposure: visible physical damage to the housing or components, unresponsive or stuck button switches, failure of the lighting function or inability to switch between brightness modes, or an inability to charge. All 3 FL1 samples cleared every one of these criteria.

Is this test relevant to end-user safety for a kids’ flashlight?

Yes. For a product designed for children, confirming that the flashlight survives transport without internal component damage is a baseline safety requirement. A unit that arrives with a damaged switch or compromised battery connection poses a reliability and safety risk. The ISTA-2A vibration test provides documented assurance that the FL1 reaches end users in full working order.

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