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CoolLED pE-4000 Universal Light Source

Home Products Optical Microscopes & Imaging Light Sources CoolLED pE-4000 Universal Light Source
CoolLED pE-4000 Universal Light Source

CoolLED pE-4000 Universal Light Source

Ideal for multi-user and core facilities


The pE-4000 sets the standard as the universal illumination system for fluorescence microscopy. The system has 16selectable LED wavelengths that can be matched to the filters and fluorophores of almost any microscope, making it the broadest spectrum of illumination available.


The CoolLED pE-4000 now benefits from our award winning sustainable Green technology and delivers enhanced intensity at your microscope sample plane with a significant reduction in energy consumption, and is supplied with a 3 year warranty after registration.



  • Broadest LED spectrum available: 365-770nm - match LED peaks to existing microscope filters
  • Four channel wavelength-grouping design matches with all commercially available dual, triple, and quad filters
  • Individual control of selected LED wavelengths - less background, no filter wheel or shutters
  • Integrated with many imaging software packages - can be incorporated into all experimental parameters
  • Instant on/off - no shutters required, no warm up or cool down
  • Stable & repeatable - reliable and consistent results
  • Wide range of Microscope Adaptors - fits most microscopes
  • Precise intensity control in 1% steps (0-100%) - no ND filters required
  • Excellent uniformity over field of view - fixed and stable, no alignment necessary
  • Long lifetime - expected to exceed 25,000 hours of operating time


  • Pre-sets allowing lab manager to match white spectrum to existing filter cubes
  • Higher contrast images from matched-white spectrum
  • Simple to fit, simple to use
  • No training required


  • Individual LED wavelength selection
  • Rapid switching between LED wavelengths enables capture of high speed events
  • TTL & USB interfaces with imaging packages
  • Excitation filters can be fitted in optical path for controlled switching with no moving parts
  • Analogue inputs for dynamic intensity control
  • Optical feedback for applications requiring higher stability
  • Internal function generator for electrophysiology and optogenetics applications

For further information please contact us or download the datasheet.


pE-4000 brochure                                                     Read more on CoolLED's website