Round Driving Light Assembly Voltage Ramp-Up/Down Test Report 20260726020
Test Request Information:
| Requesting Dept. | Quality Dept. |
| Reason | Sample Testing |
Sample Information:
| Sample Name | Round Driving Light Assembly |
| Sample Model | ********、 ******** |
| Sample Qty | 1 PCS |
| Sample Received | 2026.7.25 |
| Test Dates | 2026.7.26 |
Test Requirements:
| Test No. | Test Item | Reference Standard | Test Requirement |
|---|---|---|---|
| 1 | Supply voltage slow ramp down/up | Per ISO 16750-2:2023 Clause 4.5 test method. | When tested within the supply voltage range, the functional status class defined in ISO 16750-1 shall reach Class A; outside the range, Class C. |
Test Results: Test passed; within the supply voltage range, functional status reaches Class A.
Tested by: Test Engineer Reviewed by:
Approved by: Date: 2026.7.26
Test Samples:
| Sample No. | Sample Name | Sample Model | Sample Qty |
|---|---|---|---|
| 1 | Round Driving Light Assembly | ********、 ******** | 1 PCS |
Sample Photos Before Test:
Test Procedure: Supply voltage slow ramp down/up
1、 Test Equipment:
| Equipment Name | Equipment No. | Calibration Valid Until |
|---|---|---|
| DC regulated power supply KXN-6030D | BJ-QC02-0040 | 2027.03.22 |
2、 Test Conditions:
Temperature: room temperature 25°C.
Voltage rate: (0.5 ±0.1) V/min, USmax 16 V → 0 → USmax 16 V.
3、 Test Basis:
Per ISO 16750-2:2023 Clause 4.5 test method.
4、 Test Steps:
1. DUT in lit state.
2. Ramp supply from USmax (16 V) down to 0 V at 0.5 V/min; record the extinguish threshold voltage (check whether it goes out earlier than USmin (9 V)). Below USmin the lamp may go out but shall not be damaged.
3. After holding at 0 V for ≥10 s, ramp back to USmax at 0.5 V/min (record the restart voltage); lighting shall automatically recover at USmin (Class A).
4. Repeat 3 cycles.
5、 Test Results: see table below
| Sample No. | Test Item | Test Requirement | Test Result |
|---|---|---|---|
| 1# | Supply voltage slow ramp down/up | When tested within the supply voltage range, the functional status class defined in ISO 16750-1 shall reach Class A; outside the range, Class C. | Test passed; within the supply voltage range, functional status reaches Class A. |
6、 Test Photos:
*** End of Report ***
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