Thermolab’s Photostability Chambers are developed according to the ICH 1Qb guidelines keeping in mind that light testing is an integral part of the stress testing. The chambers closely monitor temperature, Humidity (optional) and light intensity on the drug and drug substance.

Standard Features:

  • Double walled modular structure with PUF insulation
  • Inside Stainless Steel and Outside Mild Steel Powder Coated OR Stainless Steel
  • Exposure of cool white florescent light for 1.2 mil lux hours and UV-A light for 200 watt hours per square meter on the test samples
  • Cool white, near-ultraviolet, full spectrum, and dual source cool white/UV banks designed to meet Options 1 and 2 of current ICH/FDA guidelines
  • Combined light exposure or individual light exposure with automatic light cut off system after exposure is achieved
  • The light exposure data is captured in the system with respect to date and time along with temperature
  • Shelf-mounted light tubes providing direct uninterrupted light to test samples
  • Interior illumination
  • Inside full length observation glass door with secure gasket
  • Racks & trays – Stainless Steel with adjustable height
  • U shaped S.S. Nichrome wire air heaters
  • Compressor with CFC Free R 134 A / R 404 (Eco Friendly) refrigerant having state of art by-pass system for continuous run of compressor
  • Plc control system with touch screen display coloured screen – 5.7” HMI with Ethernet
  • Safety controller sensor to cut off the supply in case of overshoot and undershoot of temperature giving audio visual alarm
  • Web based online monitoring
  • Complete with IQ, OQ, PQ, Documents, Operations and Maintenance manuals
  • Works on 23V AC single phase 50Hz
  • Complete safety and alarm system
  • Automatic door open cut off of UV light as a safety measure

Optional Features:

  • 21 CFR Part 11 compliance window based communication software for data management
  • Humidity system
  • Stand by refrigeration system & Stand by humidity system
  • Scanner 4 point temperature and 4 point humidity scanner complete with sensors and printer interface and data storage facility Door Access Security system
  • Mobile Alert system
  • 80 Col. Dot Matrix printers along with Stainless Steel stand


  • Standard Model(S) : Inside S.S. 304 with mirror polish & outside mild steel powder coated
  • GMP Model(G) : Inside S.S. 304 with mirror polish & outside with S.S. 304 matt buff
  • Temperature Range : 20 °C to 60 °C
  • Temperature Accuracy : ± 0.2 °C
  • Temp Uniformity : ± 2 °C

Technical Data:

Models Capacity Dimensions in cms LIGHT BANKS
(S)OR(G) Ltrs. Internal
TP 90 S/G 3/90 45 40 50 1
TP 200 S/G 8/200 60 63 60 1

Photo Stability Chamber

Click on image to zoom


UV Floroscent Light

Stand By Refrigeration System

Stand By Humidity System

Safety Alarm System

Mobile Alert System

Touch Screen Display



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