LED Light Bar Assembly UV Weathering Test Report 20260817014
Test Report Page1of4
Test Request Information:
| Requesting Dept. | Quality Dept. |
| Reason | Sample Testing |
Sample Information:
| Sample Name | LED Light Bar Assembly |
| Sample Model | ********、 ******** |
| Sample Qty | 1 PCS |
| Date | 2026.7.2 |
| Date | 2026.8.16 |
Test Requirements:
| Test No. | Test Item | Reference Standard | Test Requirement |
|---|---|---|---|
| 1 | UV Test | Per GB/T 16422.3-2022 test method, 1000 hours. | After the test, the outer surface shall show no cracking, chalking, blistering or obvious yellowing. |
Test Results: After test ， ， passed
Tested by: Test Engineer Reviewed by:
Approved by: Date: 2026.8.17
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: UV Test
1、 Test Equipment:
| Equipment Name | Equipment No. | Calibration Valid Until |
|---|---|---|
| UV aging chamber | 0006-007-0021 | 2027.03.22 |
2、 Test Conditions:
Temperature: 50°C ±3°C.
Radiation source: UVA-340 lamp simulating solar UV radiation; irradiance 0.76 W/(m²·nm) at 340 nm.
Test duration: 1000 h.
3、 Test Basis:
Per GB/T 16422.3-2022 test method, 1000 hours.
4、 Test Steps:
1、 UV ， ，
2. Set the test temperature to 50°C.
3、 Measure irradiance periodically during exposure. If necessary, reposition samples during exposure per ISO 4892-1 to ensure uniform exposure intensity.
4、 Remove samples for periodic inspection when necessary without touching the test surface; return samples to the rack in the original exposure orientation after inspection.
5、 When the test time is reached, switch off the instrument, remove samples, cool at room temperature for 1 hour, then evaluate results.
5、 Test Results: see table below
| Sample No. | Test Item | Test Requirement | Test Result |
|---|---|---|---|
| 1# | UV Test | After the test, the outer surface shall show no cracking, chalking, blistering or obvious yellowing. | After test Appearance Appearance ， passed |
6、 Sample Photos Before Test:
During test · During test
Test light source · Calibration label
After test
*** End of Report ***
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