Wewon Tech has developed solar simulation chambers for automobile components customers according to DIN 75 220 test standard. The design of solar simulation chambers from Wewon Tech meets the specific requirements of DIN 75 220 Table 1 for the irradiance spectrum. According to the requirements of the test standard, a sunlight simulation system must be installed to simulate the light aging characteristics of the whole vehicle or component. The metal halide lamps shall be assembled on the rail brackets in the solar simulation unit.
Test engineer can use the DIN 75 220 test to evaluate changes in the performance of parts or vehicles after irradiation, including changes in shape, color, gloss, feel, strength, sealing, and changes in artificial full irradiation, heat/cold and various thermal expansion results under the action of humidity were evaluated. The DIN 75220 test standard is mainly designed for automobile sunlight simulation aging test.
Determination of the ageing characteristics of polymeric automotive structural components in their original structural position and manner of assembly by completing DIN 75 220 test trials. This method is applied to vehicle assembly components or entire vehicles and is therefore particularly suitable for revealing the interaction of various materials within a structural member or between structural members. The light stand is fixed on the top, but the light field can obtain light intensity with uniformity within ±10% at different heights.
| Equipment Model | WEW-MHL-080L | WEW-MHL-150L | WEW-MHL-0225L | WEW-MHL-1000L-1500L |
| Test Room Volume | 80 Liters | 150 Liters | 225 Liters | 1000 Liters,1500 Liters |
| Inner Dimensions (W×D×H) | 500×400×400 mm | 500×500×600 mm | 900×500×500 mm | 1000(1500)×1000×1000 mm |
| Temperature Range | +10°C ~ +70°C | -20°C ~ +150°C | -40°C ~ +150°C | -70°C ~ +100°C/+150℃ |
| Radiation Temp Range | -20°C ~ +85°C | -20°C ~ +85°C | -20°C ~ +100°C | -20°C ~ +100°C |
| Temperature Uniformity | ≤ 2.0°C (No Light) | ≤ 2.0°C (No Light) | ≤ 2.5°C (No Light) | ≤ 2.5°C (No Light) |
| Temperature Fluctuation | ≤ 1.0°C (≤±0.5°C) | ≤ 1.0°C (≤±0.5°C) | ≤ 1.5°C (≤±1.0°C) | ≤ 1.5°C (≤±1.0°C) |
| Humidity Range (No Light) | 20% ~ 95% RH | 30% ~ 98% RH | 20% ~ 95% RH | 20% ~ 98% RH |
| Humidity Range (Under Light) | 20% ~ 80% RH | 30% ~ 80% RH | 20% ~ 80% RH | 20% ~ 80% RH |
| Humidity Deviation | ±3% (>75%), ±5% (≤75%) | ±3% (>75%), ±5% (≤75%) | ±3% (>75%), ±5% (≤75%) | ±3% (>75%), ±5% (≤75%) |
| Heating Time (No Load) | +20°C ~ +150°C / 45min | +20°C ~ +150°C / 45min | +20°C ~ +150°C / 45min | +20°C ~ +150°C / 45min |
| Cooling Time (No Load) | +20°C ~ -70°C / 80min | +20°C ~ -70°C / 80min | +20°C ~ -70°C / 80min | +20°C ~ -70°C / 80min |
| Lamp Lifespan | Approx. 500 Hours | Approx. 500 Hours | Approx. 500 Hours | Approx. 500 Hours |
| Light Source | Full Spectrum Metal Halide | Full Spectrum Metal Halide | Full Spectrum Metal Halide | Full Spectrum Metal Halide |
| Irradiation Intensity | 400 ~ 1200 W/m² | 400 ~ 1200 W/m² | 400 ~ 1200 W/m² | 400 ~ 1200 W/m² |
| Spectral Energy Ratio | UV: ~6-7%, Visible: ~51-55%, | IR: ~38-42% | UV: ~6-7%, Visible: ~51-55%, | IR: ~38-42% |
| Spectral Distribution | 280 ~ 3000 nm | 400 ~ 1200 W/m² | 280 ~ 3000 nm | 290 ~ 3000 nm |
| Irradiance Uniformity | ≤ 5% | ≤ 5% | ≤ 8.5% | ≤ 10% |
| Filter Type Desciption | Daylight Glass Filter (UV/IR Corrected) | Window Glass Filter | Daylight Glass Filter / Window Glass Filter (Optional) | |
| Applicable Standards | DIN 75220 | MIL-STD-810 | IEC60068-2-5 | DIN 75220, MIL-STD-810 |
| Temperature Controller | Color Touch Screen + PLC | Color Touch Screen + PLC | Color Touch Screen + PLC | Color Touch Screen + PLC |
| Low Temperature System | The unique design meets the automatic operation of the compressor in the full temperature range. | |||
| Compressor System | Tecumseh (France) | Imported Full/Semi-Hermetic | Tecumseh (France) | Germany BOKE |
| Cooling Method | Air Cooling | Air Cooling | Air Cooling | Air Cooling (Water Optional) |
| Air Velocity (Wind Speed) | 0.25 m/s ~ 1.0 m/s | 0.35 m/s ~ 1.0 m/s | 0.25 m/s ~ 1.2 m/s | 0.35 m/s ~ 1.5 m/s |
| Humidification Water | Distilled or Deionized Water | Distilled or Deionized Water | Distilled or Deionized Water | Distilled or Deionized Water |
| Security Measures | Leakage, Short Circuit, Over Temperature, Water Shortage, Motor Overheating, Compressor Overpressure etc. | |||
| Standard Device | Sample Shelf (2 Sets) | Observation Window | Lighting, Cable Hole, Casters | Sample Shelf (2 Sets) |
| Power Supply (kW, Hz) | AC 220V, 50Hz/60Hz, 1 Phase | AC 208V, 60Hz, 1 Phase | AC 380V, 50Hz 3 Phase | AC 440V, 60Hz, 3 Phase |
| Outer/Inner Wall Material | SUS304 Stainless Steel Plate | SUS304 Stainless Steel Plate | SUS304 Stainless Steel Plate | SUS304 Stainless Steel Plate |
| Insulation Materials | Rigid Polyurethane Foam | Rigid Polyurethane Foam | Rigid Polyurethane Foam | Rigid Polyurethane Foam |
| Equipment Weight | 425.0 KGS | 550.0 KGS | 850.0 KGS | 1500.0 KGS |
We use German original metal halide lamps and dimmers, which are specially designed for daylight simulation experiments to simulate the real solar spectrum. Metal halide lamp test chambers evaluate the ability of equipment used and stored outdoors to withstand direct solar radiation to produce thermal and optical effects. After the test, the appearance and working performance of the product are verified to evaluate whether the materials and devices of the product can resist the requirements of outdoor solar radiation.
| Uses a premium metal halide lamp setup to recreate full terrestrial sunlight spectrum conditions, focusing heavily on accelerating the degradation, thermal stress, and photochemical aging of test samples. | Accelerated Weathering: | 🌟 Core Capabilities & Climate Simulation |
| Uses a high-intensity metal halide lamp to replicate full terrestrial solar wavelengths (ultraviolet, visible, and infrared light). It focus on inducing real-world photochemical breakdown and degradation. | Full Sunlight Simulation: | |
| Simulating 1 day inside the chamber is equivalent to 15 to 20 days of natural outdoor exposure (a 15–20x acceleration factor). | The High Efficiency: | |
| Certified to perfectly meet ground-level simulation testing frameworks dictated by GB/T 2423.24-2013 and IEC 60068-2-5:2010, DIN 75 220. | International Standards: | |
| Fabricated with a robust cold-rolled steel shell finished in a high-temperature baked paint. The door assembly features a tightly compressed silicone rubber gasket array for total climate isolation. | Rugged External Finish: | 📐 Mechanical & Structural Blueprint |
| The inner climate liner and parallel specimen placement racks are built out of premium SUS304 stainless steel to withstand continuous humidity, high heat, and rain cycles. | SUS304 Stainless Steel Interior: | |
| The height of the specimen rack can be dynamically shifted in 50 mm steps to adjust distance from the light source or accommodate various sample profiles. | Adjustable Loading Space: | |
| Regulated by 1 or more high-performance OSRAM metal halide lamp running at 2.5 KW with a typical runtime lifespan of 500 hours. | Single Lamp Engine: | ☀️ Optical & Irradiance Architecture |
| Integrates specialized solar-matched daylight filter plates placed between the overhead lamp housing and testing chamber to precisely match the target spectrum. It implements an advanced fiber-optic transmission system to measure lamp intensity, effectively eliminating measurement errors caused by fluctuating temperatures. | Daylight Filtering: | |
| Optimized with a cone-shaped upper internal chamber layout acting as a high-efficiency reflective hood to achieve absolute brightness and heat uniformity across the sample area. | Hood Uniformity: | |
| Employs an advanced fiber-optic transmission system to measure lamp output intensity. By pulling the critical electronics away from the direct heat zone, it eliminates sensor measurement errors caused by fluctuating chamber heat. | Fiber-Optic Sensor Isolation: | |
| Tuned to deliver a powerful total irradiance of 1120 W/m² ± 10% W/m² (covering 280 to 3000 nm) tracking live output via an integrated rack-center sensor. | Irradiance Levels: |
A metal halide lamp is a gas discharge lamp that energizes with a metal halide to provide a distribution of spectral energy very similar to direct and diffuse. The method has high efficiency, and a single irradiation light source effect can be produced by placing a plurality of radiation light sources in a certain manner. The spectral distribution of metal halide lamps is very similar to the sunlight received by the earth’s surface, but due to the relatively large scale of metal halide lamps, it is mainly suitable for artificial light aging accelerated tests of large equipment such as automobiles and their parts and electrical and electronic products.
During the test, different test methods and different test periods can be selected according to different use conditions. According to the test standard of MIL-STD-810 Method 505.4, the first procedure is the cyclic test and the second procedure is the steady state test. Program 1 focuses on the effects and influences produced by solar radiation; Program 2 focuses on photochemical effects produced by solar radiation. Wewon’s solar simulation system comply with the test standard, such as DIN 75 220, MIL-STD-810 Method 505.4, GJB 150.7A-2009
During the test, different test methods and different test periods can be selected according to different use conditions. According to the test standard of MIL-STD-810 Method 505.4, the first procedure is the cyclic test and the second procedure is the steady state test. Program 1 focuses on the effects and influences produced by solar radiation; Program 2 focuses on photochemical effects produced by solar radiation. Wewon’s solar simulation system comply with the test standard, such as DIN 75 220, MIL-STD-810 Method 505.4, GJB 150.7A-2009
| The solar simulation test is essential for all applications in which it is necessary to determine how products and materials react to solar radiation over their useful life. There are many reference standards for testing resistance to solar radiation over time. Two examples: DIN 75220 and MIL-STD-810 tests｜Page Source: https://acs.angelantoni.com/en/resources/sun-is-the-source-of-energy-but-it-also-has-a-dangerous-side-discover-acs-solutions-for-solar-simulation-testing | How Can We Ensure That A Product Meets Certain Requirements Before It Is Put On The Market? |
| Determination of materials and components resistance for solar radiation is very important aspect of products’ quality evaluation. Simulation of external conditions effect on materials may be performed with various methods. In case of solar radiation simulation the kind of light source is of great importance due to differences in spectral characteristics. Radiation emitted by metal halide lamp very closely simulate spectral energy distribution and intensity of solar radiation – in reference with CIE publication No. 85 (spectral range: UV-VIS-IR i.e. 280 ÷ 3000 nm) with fully regulated intensity. | Testing in Solar Simulation Chamber – Metal Halide Lamps |
| Testing of components and assemblies in solar simulation chambers allows determination of changes in such properties as shape, color, gloss or strength. Other characteristics that are common evaluated are presence of stains, cracks or delamination and other aesthetic and functional aspects｜Page Source: https://www.bosmal.eu/377-product_light_and_weather_conditions_resistance_tests | |
| Although DIN 75220 does not specify the light source, the de-facto standard for this method always has been metal halide lamps. They are ideal for large scale solar simulation testing because of their (1) Good simulation of the complete solar spectrum in the UV, visible and IR wavelength regions (2) High light efficacy. | Xenon or Metal Halide? Can Xenon Support Automotive Interior Component Testing According to DIN 75220? |
| Can xenon support automotive interior component testing according to DIN 75220?” My answer is: “Not really”. Xenon’s strengths remain in the benefits required for UV durability testing. However, professional aging testing of vehicle interior components is more dependent on the correct temperature profile (specimen size, shape, position) and microclimate condition｜Page Source: https://www.atlas-mts.com/knowledge-center/atlas-weathering-blog/2022/august/can-xenon-support-automotive-interior-component-testing-according-to-din-75220 | |
| DIN 75220 describes the irradiation of automotive interior and exterior components in a sun simulation chamber. A distinction is made between cycle and endurance tests; climatic stress (humidity and temperature) can also be simulated. Common automotive standards that refer to DIN 75220 are, for example, VW/Audi TL 226 or TL 52013. Other OEMs are Daimler in the delivery conditions DBL 5404 / DBL 9202 or BMW in the test specification GS 95024-3-7｜Page Source: https://www.aso-skz.de/en/industry-solutions/automotive/testing-standards/din-75220# | DIN 75220 Ageing Of Automotive Components In Solar Simulation Facilities |
DIN 75520 refers to the light aging test using metal halide lamp as the light source. Metal halide lamp is a gas discharge lamp that uses metal halide to energize. The spectral energy distribution of metal halogen lamp is very similar to the sunlight received by the earth’s surface, and it has a good simulation of the infrared region, which is better than several other commonly used light sources. The equipment scale of the simulation method is large, mainly used for artificial light aging tests of complete vehicles, auto parts, and large electrical and electronic equipment.
| Climate Parameter | Unit | Dry Climate | Humid Climate | Table 2, Outdoor- Daytime | 7.2.3 Test Climates |
| Black Standard Temperature * | ℃ | Measured Value | Measured Value | ||
| Test Chamber Temperature | ℃ | 42 ± 3 | 42 ± 3 | ||
| Rel Atmospheric Humidity | % | ＜ 30 | ＞ 60 | ||
| Radiation Intensity ** | W/m2 | 1000 ± 100 | 1000 ± 100 | ||
| * Guide value may be agreed between the supplier and customer. | |||||
| ** Radiation distribution according to Table 1, Second column. | |||||
| Climate Parameter | Unit | Dry Climate | Humid Climate | Table 3, Indoor 1 (irradiation Zone 1) Daytime | |
| Black Standard Temperature * | ℃ | Measured Value | Measured Value | ||
| Test Box Temperature | ℃ | 80 ± 3 | 80 ± 3 | ||
| Rel Atmospheric Humidity | % | ＜ 30 | ＞ 40 | ||
| Radiation Intensity ** | W/m2 | 830 ± 80 | 830 ± 80 | ||
| * Guide value may be agreed between the supplier and customer. Typical tempeature are around 120℃ | |||||
| ** Radiation distribution according to Table 1, Fourth column. | |||||
| Climate Parameter | Unit | Dry Climate | Humid Climate | Table 4, Indoor 2 (Irradiation Zone 2) Daytime | |
| Black Standard Temperature * | ℃ | Measured Value | Measured Value | ||
| Test Chamber Temperature | ℃ | 65 ± 3 | 65 ± 3 | ||
| Rel Atmospheric Humidity | % | ＜ 30 | ＞ 50 | ||
| Radiation Intensity ** | W/m2 | 830 ± 80 | 830 ± 80 | ||
| * Guide value may be agreed between the supplier and customer. Typical tempeature are around 100℃ | |||||
| ** Radiation distribution according to Table 1, Fourth column. | |||||
| Climate Parameter | Unit | Dry Climate | Frosty Climate | Table 5, Outdoor 1 and 2 Daytime | |
| Test Box/Test Chambre Temperature | ℃ | 10 ± 3 | `- 10 ± 3 | ||
| Rel Atmospheric Humidity | % | ＞ 55 * | Condensation Permissible | ||
| * This value allows for the fact that at low temperature even in a dry climate (night time), high relative air humidity amy occur. | |||||
The test room utilizes a 2.5 KW metal halide lamp to replicate the full terrestrial sunlight spectrum (280~3000 nm), effectively accelerating material degradation. Delivering 240,000 lumens with a 6,000K color temperature and a CRI exceeding 90, it closely mimics natural daylight. Specialized UV/IR-corrected glass filters ensure precise outdoor spectral matching. Built for reliability, the double-ended lamp supports rapid hot restarts, withstands pinch seal temperatures up to 450°C, and offers a 500-hour lifespan. To maximize efficiency, the upper lamp assembly functions as a reflective hood, ensuring absolute brightness and thermal uniformity.
The internal climate is managed by a high-precision spray system equipped with 0.8 mm fine nozzles. Operating at a regulated water pressure of 0.12 to 0.15 MPa. To withstand these continuous high-humidity cycles, the inner climate liner and parallel specimen placement racks are constructed from premium SUS304 stainless steel. The height of the specimen rack can be dynamically shifted in 50 mm steps to adjust the sample’s distance from the light source. Test engineers can program custom weathering loops-such as alternating 18-minute spray and 102-minute dry cycles-to satisfy strict standards like DIN 75 220, achieving a 15-20x acceleration factor over natural outdoor exposure.
| Maintains a baseline from RI + 10°C up to 70°C with a ramp rate of exactly 1°C/min (up or down). Achieves a strict accuracy profile of ±0.1°C, fluctuation of ±0.5°C, and max deviation of ±3°C. | Temperature Parameters: | 🌡️ Precision Control Systems |
| Spans a deep 30% to 98% RH in dark cycles and drops down to 20% to 60% RH during active illumination phases to handle strict ambient shifting. Fluctuation stays bound within ±3% RH with a deviation profile under ≤±5% RH. | Humidity Parameters: | |
| Managed via Ф0.8 mm fine nozzles under a water pressure profile of 0.12 to 0.15 Mpa. Supports customizable continuous spray timers (1s to 9999 min), interval pauses (1 to 240 min), or standard weathering loops like 18min/102min cycles or 12min/48min (spray/dry periods).. | Rain/Spray Simulation: | |
| Outfitted with an insulated ceramic heating frame that keeps coarse German-imported heating wires safely threaded inside quartz glass tubes. This layout completely prevents wires from softening or sagging onto the steel chassis, cutting the risk of short circuits. | Ceramic Safe-Heating: | 🔧 Component Configuration |
| Relies on an external humification chamber utilizing a U-shaped pipe setup and dedicated over-temperature sensors. Humidifying externally ensures gradual moisture generation without creating sudden heat waves that cause internal temperature drift. | Indirect External Humidifier: | |
| Employs a fully hermetic French-imported Tecumseh compressor cycling eco-friendly DuPont R404 and R23 refrigerants alongside automated cooling vents linked to the core display unit. | Refrigeration Cooling: | |
| Governed by an intelligent Siemens PLC motherboard paired up to a premium Japan-designed Kunlun Tongtai high-spec network touchscreen. | Siemens Core Programming: | 🖥️ Smart UI View & Failsafes |
| Directly tracks and displays spray time, dark phases, cumulative irradiance, and testing loops on-screen, supporting automated 24-hour cycle protocols (Procedures A, B, and C). | Live Parameters: | |
| Features intuitive menus where rainfall duration, dark periods, total irradiance energy, and cycle loops are modified and tracked in real-time. Automatically runs 24-hour cycle switching protocols (Procedures A, B, and C). | Multi-Cycle Switching: | |
| Fully protected by over-temperature cutoffs, leakage breakers, short-circuit protection, and a localized buzzer notifying operators the exact second a program cycle finishes. | Safety Net Notice: |
