Light Fastness Tester Features and Benefits
1. Full-spectrum xenon arc lamps, when paired with window glass filters or outdoor filters, effectively simulate ultraviolet, visible and near-infrared light in sunlight, approaching real outdoor usage conditions.
2. Adjustable parameters such as temperature (Ambient ~ 100 ℃ ±2℃), humidity (50% ~ 98% RH), and irradiation intensity (35~150 W/㎡), to meet different standards (such as ISO, AATCC, etc.) and various custom conditions.
3. LIB light fastness tester can simultaneously conduct tests such as spray and condensation, meeting the requirements of complex environment simulation.
4. Accelerated aging simulation can obtain outdoor light aging data equivalent to several months or years within a few hundred hours, significantly shortening the verification cycle of new materials and new formulas.
Specifications of Light Fastness Tester
Model | XL-S-750 |
Internal Dimension (mm) | 950*950*850 mm |
Overall Dimension (mm) | 1400*1400*1950 mm |
Specimen Holder Size(mm) | 95*200 |
Specimen Capacity | 42pcs |
Chamber Type | Rotating Holder |
Irradiation Source | 1 piece of 4500w water-cooled xenon arc lamp |
Irradiance Range | 35~150 W/㎡ |
Bandwidth Measurement | 300nm~400nm (340nm or 420nm) |
Chamber Temperature Range | Ambient ~ 100 ℃ ±2℃ |
Black Panel Temperature | BPT 35 ~ 85 ℃ ±2℃ |
Humidity Range | 50% ~ 98% RH |
Humidity Deviation | ± 5% RH |
Water Spray Cycle | 1~9999H59M (Adjustable) |
Controller | Programmable color LCD touch screen controller |
Water supply system | Automatic water supply, Water purification system |
Radiometer | UV Radiometer, Tolerance: ±5% |
Cooling System | Mechanical compression refrigeration system |
Details of Light Fastness Tester

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Rotating sample holder | Xenon arc light |
Corrosion-resistant SUS304 sample holder, capable of 360° continuous rotation, ensures consistent light and heat exposure conditions for each sample. Supports simultaneous testing of 42 samples (customizable).
| 4.5kW high-performance water-cooled xenon arc lamp, equipped with a filter (optional window glass type or sunlight type), simulates direct sunlight (full spectrum). and is equipped with a radiometer to ensure automatic constant control of irradiance
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Water cycle | Intelligent remote control |
Automatic water filtration and circulation system to ensure the cleanliness of the water source for spraying, cooling and humidity control, prevent nozzle blockage, save water resources and improve the efficiency of the test. | Full-color touch screen controller, PLC programming, to achieve test program setting, light/dark cycle setting, fault alarm and remote monitoring. Support data USB export and network interface
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