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LBT611M Sunlight and Climate Colorfastness Tester

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

Category:

Textile and Apparel Testing Equipment

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lbt@lbt.ltd

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+86-15102211717

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LBT611M Sunlight and Climate Colorfastness Tester

Description

Product Introduction:

It is used for testing the lightfastness, weatherfastness, 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 irradiance, temperature, humidity, and rain exposure within the test chamber, it simulates natural environmental conditions to evaluate the lightfastness, weatherfastness, and photo‑aging resistance of test specimens. The system features online irradiance control, automatic monitoring and compensation of irradiation energy, closed-loop regulation of temperature and humidity, and multi‑point adjustment capabilities, including blackboard temperature feedback control.

Reference standard:

GB/T 8427, GB/T 8430, GB/T 14576, GB/T 15102, GB/T 15104, SAE J1960, 1885, JASO M346, PV1303, AATCC 16, 169, ISO 105‑B02, ISO 105‑B04, ASTM G155‑1, G155‑4, and others.

Product Features:

1. Color touchscreen display with multiple presentation formats, including numerical values and charts;

2. Equipped with a genuine imported long-arc xenon lamp, ensuring stable arc and high luminous efficiency.

3. The spectrum was analyzed using a spectrometer manufactured by Ocean Optics, Inc., and fully complies with the relevant standards.

4. The instrument is equipped with a refrigeration system, enabling precise control of the test chamber temperature.

5. The accessories include: specimen holder, blackboard thermometer, standard blackboard thermometer, long‑arc xenon lamp, and others.

6. Complies with multiple national standards, including AATCC, ISO, GB/T, and JIS.

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

8. The irradiance sensor maintains a fixed relative position with respect to the light source, thereby eliminating measurement errors caused by rotational vibration of the turntable and refractive effects arising from the sample holder’s movement to different positions.

9. Automatic light energy compensation function;

10. Temperature control (irradiation temperature, heater‑induced heating, air‑conditioner cooling) and humidity control (humidification via multiple ultrasonic atomizers, saturated steam humidification, and dehumidification using industrial refrigeration units), employing dynamic equilibrium technology;

11. Precise and rapid control of BST and BPT;

12. Independent timing function for each sample;

13. Dual-loop electronic redundancy design ensures long-term, continuous, fault-free operation of the instrument.

Technical Specifications:

Technical Specifications	Indicator Requirements
Light source wavelength	412 nm
Maximum permissible wavelength error	± 2.0 nm
Wavelength repeatability	≤ 3.0 nm
Repeatability (RSD)	< 3.0% (n=7, 0.75 mg/L)
Stability (RSD of the working curve slope, 12 h)	< 1.5%
Limit of quantitation*	0.10 mg/L
Measurement range	0.10 ~ 3.0 mg/L
Compatibility of the absorption cell	≤ 0.5% T
Power supply	AC 220 V, 50 Hz
Work environment	Temperature: 5–35°C, relative humidity: <85%

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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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LBT611M Sunlight and Climate Colorfastness Tester

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Address:Tianjin Jinghai Economic Development Zone

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