LED Light Bar Assembly Operating Voltage & Current Test Report 20260714011
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 | 2026.07.13 |
| Test Dates | 2026.07.14 |
Test Requirements:
| Test No. | Test Item | Reference Standard | Test Requirement |
|---|---|---|---|
| 1 | Operating Voltage | Per ISO 16750-2:2023 Clause 4.2; supply voltage range 9-16 V. | or and ， Function |
| Operating Current | 3.2， Operating Current | or and ， Function |
Test Results: Test passed; function normal after the test. is 10V
Tested by: Test Engineer Reviewed by:
Approved by: Date: 2026.07.14
Sample Photos Before Test:
Test Procedure: Operating Voltage Operating Current
1、 Test Equipment:
| Equipment Name | Equipment No. | Calibration Valid Until |
|---|---|---|
| DC regulated power supply KXN-6030D | BJ-QC02-0040 | 2027.03.22 |
| Constant temperature & humidity chamber | 0006-007-0061 | 2027.03.22 |
| Forced-air drying oven | 0006-007-0070 | 2027.03.22 |
2、 Test Conditions:
Temperature points: Tmin = –40°C, room temperature = 25°C, Tmax = 85°C.
Voltage: 12 V system USmin = 9 V, USmax = 16 V, UA = 14 ±0.2 V.
3、 Test Basis:
Per ISO 16750-2:2023 Clause 4.2; supply voltage range 9-16 V.
4、 Test Steps:
1. Load the DUT into the chamber and test in the order: Tmin → room temperature → Tmax.
2. Operating modes 3.3 and 3.4: at each temperature step, sweep the supply from USmin to USmax, light the lamp and record whether it lights normally and the steady-state current.
3. Operating mode 3.2: set supply to UA, light the lamp and record whether it lights normally and the steady-state current.
4. t1 = 30 s, t2 = 60 s, rise = 1 V/s, fall = 1 V/s.
5、 Test Results: see table below
| Sample No. | Test Item | Test Requirement | Test Result |
|---|---|---|---|
| 1 | Operating Voltage | or and ， | Test passed; function normal after the test. is 10V |
| Operating Current | or and ， Function |
Voltage & Current
| 3.2 Operating mode: normal load | 25℃ | |||
|---|---|---|---|---|
| 14V | ||||
| 13.3A | ||||
| 3.3 Operating mode: min load | -40℃ | 85℃ | ||
| 10V | 16V | 10V | 16V | |
| 0.3A | 0.3A | 0.3A | 0.3A | |
| 3.4 Operating mode: max load | -40℃ | 85℃ | ||
| 10V | 16V | 10V | 16V | |
| 3.3A | 11.3A | 4.2A | 7.1A |
6、 Test Photos:
Low-temperature environment –40°C · Low-temperature state test
Chamber calibration label · DC supply calibration label
Min load at low temp 10 V · Min load at low temp 16 V
Max load at low temp 9 V · Max load at low temp 16 V
High-temperature environment 85°C · Chamber calibration label
Min load at high temp 10 V · Min load at high temp 16 V
Max load at high temp 9 V · Max load at high temp 16 V
Normal load at room temperature: 14 V.
*** End of Report ***
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