LED Light Bar Assembly Transient Overvoltage Test Report 20260727022
Test Request Information:
| Requesting Dept. | Quality Dept. |
| Reason | Sample Testing |
Sample Information:
| Sample Name | LED Light Bar Assembly |
| Sample Model | ********、 ******** |
| Sample Qty | 1 PCS |
| Sample Received | 2026.07.25 |
| Test Dates | 2026.07.27 |
Test Requirements:
| Test No. | Test Item | Reference Standard | Test Requirement |
|---|---|---|---|
| 1 | Transient Overvoltage | Per ISO 16750-2:2023 Clause 4.3.2, 12 V system test method. | The device or system performs all designed functions during the disturbance; however, one or more values may exceed specified deviations. All functions automatically recover to the normal operating range after the disturbance stops. |
Test Results: ， After test Function
Tested by: Test Engineer Reviewed by:
Approved by: Date: 2026.07.27
Test Samples:
| Sample No. | Sample Name | Sample Model | Sample Qty |
|---|---|---|---|
| 1 | LED Light Bar Assembly | ********、 ******** | 1 PCS |
Sample Photos Before Test:
Sample 1
Test Procedure: Transient Overvoltage
1、 Test Equipment:
| Equipment Name | Equipment No. | Calibration Valid Until |
|---|---|---|
| DC regulated power supply | BJ-QC02-0024 | 2027.03.22 |
| DC regulated power supply | BJ-QC02-0039 | 2027.03.22 |
| DC regulated power supply | BJ-QC02-0040 | 2027.03.22 |
2、 Test Conditions:
Temperature: room temperature 25°C.
Voltage: 12 V system test voltage 18 V.
3、 Test Basis:
Per ISO 16750-2:2023 Clause 4.3.2, 12 V system test method.
4、 Test Steps:
1. DUT at room temperature, lit at 13.5 V.
2. Programmable supply outputs 18 V / 400 ms overvoltage pulses, interval ≥1 min, 5 pulses total.
3. Monitor during each pulse: lamp flicker/extinguish and driver reset.
4. After 5 pulses, return to nominal voltage and confirm function self-recovery.
5、 Test Results: see table below
| Sample No. | Test Item | Test Requirement | Test Result |
|---|---|---|---|
| 1 | Transient Overvoltage | The device or system performs all designed functions during the disturbance; however, one or more values may exceed specified deviations. All functions automatically recover to the normal operating range after the disturbance stops. | ， After test Function |
6、 Test Sample Photos:
During test · During test
Time settings · Time settings
*** End of Report ***
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