Light Fastness Tester - TF420

COLOR FASTNESS > Light Fastness Tester

Product Code: Light Fastness Tester - TF420

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Delivery Charge:

Inside Dhaka (1-3 Days)
    Advance Payment: 50
    Cash on Delivery: 50
Outside Dhaka (3-5 Days)
    Advance Payment: 70
    Cash on Delivery: 100

Return & Warranty:

7 Days Returns
Change of mind is not applicable
Warranty not available


This Weatherometer is equipped with calibrated lamps, specific filters, very accurately monitored irradiance, purified water, controlled atmosphere (humidity and temperature) and predefined light, dark and rain cycles durations to simulate a lighting exposure environment(both light and dark cycles), to determine color fastness to light, weather and light aging of various colored textiles and other materials, as for these applications, you can call this weather ometer a light fastness tester or fadeometer. In addition, It can shorten the testing time via using xenon arc irradiation in a chamber, that’s why it’s also called xenon arc weathermometer chamber.


  • Light intensity set digitally, real-time monitoring, closed-loop controlled and automatically adjust to meet the different standards (standard 420nm; 340nm, 300~400nm, 300~800nm is offered on request)
  • 10.4 inch large color touch panel, a variety of test monitoring modes (animation, digital, graphic) operate easily and clearly.
  • All key components such as temp, and humidity sensors, ultrasonic himidifier are imported from USA, Japan, Germany, etc.
  • Blackboard Thermometer (BPT), the Standard Blackboard Thermometer (BST), Irradiance detector and samples placed in the same position, a true reflection of the sample under test conditions, the data displayed as figures, charts, curves on the large color screen, no need to stop for observation.
  • Detection and wireless transmission using light energy conversion technologies for energy, not the other home power supply.
  • Sample holders can be timed independently to achieve different tests simultaneity in the same machine
  • Rated 2500W long arc xenon lamp simulate daylight spectrum.
  • Industrial temperature control (cooling) system offers quickly and smoothly control
  • Set of Sample Holders, set of Blue Wool Fabric (L1~L8), Gray Scale (Changing), Arc xenon Lamp and other


  • Working modes      To simulate and reinforce the impact of the nature of the measured object, providing light and dark, temperature and humidity, raining and other quantitative indicators.
  • Light source     2500W air-cooled long-arc xenon lamp
  • Temperature range      25 ~ 50 ℃, Resolution 0.1 ℃
  • Humidity range Bright cycle 10 ~ 70% RH,
    Dark cycle 30 ~ 95%, R. H.
    resolution 0.1%
  • Test time control       ≤ 1000h
  • Irradiance      0.80 ~ 2.01W/m2 @ 420nm (340nm, 300~400nm,
    300~800nm is offered on request), Digital set, automatic closed-loop compensation
  • Irradiance accuracy      ± 0.02W/m2 @ 420nm
  • Sample holder
    ISO / GB 135 x 45mm, 16 Pcs
    AATCC 130 x 75mm, 8 Pcs, samples can be held on both sides
  • Rotation speed of sample holder 5 rpm
  • BPT Range (40 ~ 80) +/- 2℃
  • BST Range (40 ~ 85) +/- 1℃

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