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LBT611Q Sunlight and Climate Colorfastness Tester

It is used for testing the lightfastness, weathering fastness, and photo‑aging of colored materials in textiles, printing and dyeing, apparel, automotive interior components, geotextiles, leather, engineered wood panels, wood flooring, plastics, and other applications.

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Textile and Apparel Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT611Q Sunlight and Climate Colorfastness Tester

Description

Product Introduction:

It is used for testing the lightfastness, weathering fastness, and photo‑aging performance of colored materials in textiles, printing and dyeing, apparel, automotive interior components, geotextiles, leather, engineered wood panels, wood flooring, plastics, and other applications. By precisely controlling parameters such as light irradiance, temperature, humidity, and rain exposure within the test chamber, it simulates natural environmental conditions to evaluate the lightfastness, weathering fastness, and photo‑aging resistance of test specimens. The system features online control of illumination intensity, automatic monitoring and compensation of light energy, closed-loop regulation of temperature and humidity, and multi‑point adjustment capabilities, including blackboard temperature control.

Reference standard:

GB/T 8427, GB/T 8430, GB/T 14576, GB/T 16422.2, 1865, 1189, GB/T 15102, GB/T 15104, AATCC 16, 169, ISO 105‑B02, ISO 105‑B04, ISO 105‑B06, ISO 4892‑2‑A, ISO 4892‑2‑BJIS 0843, GMW 3414, SAE J1960, 1885, JASO M346, PV1303, ASTM G155‑1, G155‑4, and others.

Product Features:

1. Complies with multiple national standards, including AATCC, ISO, GB/T, FZ/T, and BS.

2. Color touchscreen display with multiple visualization options—digital readouts, graphs, and more; capable of showing real-time monitoring curves for light irradiance, temperature, and humidity; and equipped with a library of pre‑set test standards for convenient selection and recall.

3. Safety‑protection monitoring points (irradiance, water level, cooling air flow, chamber temperature, chamber door, overcurrent, and overvoltage) enable the equipment to operate unattended.

4. Imported 3000W long-arc xenon lamp illumination system, accurately simulating the solar spectrum.

5. The irradiance sensor is fixed in position, eliminating measurement errors caused by rotational vibration of the turntable and light refraction as the sample holder rotates to different positions.

6. Automatic light energy compensation function.

7. Temperature (irradiation temperature, heater‑induced heating) and humidity (humidification via multiple ultrasonic atomizers and saturated steam humidification) dynamic equilibrium technology.

8. Precise and rapid control of BST and BPT.

9. Water circulation and water purification system.

10. Independent timing function for each sample.

11. Dual-loop electronic redundancy design ensures the instrument’s long-term continuous operation.

Technical Specifications:

Technical Parameter Item	Detailed content
Display mode	Color touchscreen display; capable of showing real-time monitoring curves for light irradiance, temperature, and humidity.
Long-arc xenon lamp power supply	220V, 50Hz, 3000W (maximum power)
Long-Arc Xenon Lamp Parameters	Imported air-cooled xenon lamp, overall length 460 mm, electrode spacing: 320 mm, diameter: 12 mm.
Average service life of a long-arc xenon lamp	1,500 hours (with automatic energy compensation, effectively extending the lamp’s service life)
Sunlight exposure chamber dimensions	400mm×400mm×460mm (L×W×H)
Specimen holder rotational speed	Adjustable from 1 to 4 rpm
Specimen holder rotary diameter	300mm
Number of specimen holders and the effective exposure area per holder	16 pieces, 280 mm × 45 mm (L × W)
Temperature control range and accuracy of the test chamber	Room temperature to 48°C ± 2°C (under standard laboratory humidity conditions)
Humidity control range and accuracy of the test chamber	25%RH to 85%RH ±5%RH (under standard laboratory humidity conditions)
Blackboard temperature range and accuracy	BPT: 40℃～80℃±2℃ BST: 40℃ to 85℃ ±1℃ (digital display, automatic monitoring, closed-loop control)
Light irradiance control range and accuracy	Monitoring wavelength range: 300 nm to 400 nm; (35–55) W/m²·nm ± 1 W/m²·nm. Monitoring wavelength 420 nm: (0.550–1.300) W/m²·nm ± 0.02 W/m²·nm Optional configuration includes 340 nm, or a 300–800 nm range, as well as other wavelength bands for monitoring. Irradiance Control Mode: Monitored by an irradiance sensor, digitally set, with automatic compensation and stepless adjustment.
Instrument placement	Place on the ground
External dimensions	900mm×650mm×1800mm (L×W×H)
Power supply	220V, 50HZ, 4500W
Weight	230kg

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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LBT611Q Sunlight and Climate Colorfastness Tester

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