
Pareidolia – the human ability to see shapes or make pictures out of randomness.
Have you found a face in your fluorescence?
Discovered a dragon in your dendrites?
Spotted a spider in your synapses?
Glimpsed a goblin in your gastrula?
If you’ve spotted an image of something else inside a fluorescence image, then send it to us for your chance to win a pE-400 Direct Fit LED Illumination System!
After the competition closes, we will whittle all entries down to the finalists, and will then put the vote out to the general public to decide on who wins!
Celebrating Some Past Entries
Thank you to everyone who entered our previous competitions, and congratulations to the lucky winners Alfonso Schmidt (2020), Sam Duwe (2021), Claire Dessalles (2022) and Adam Vogrin (2023)
Here are some of the top entries we’ve had over the last few years:
About the pE-400 Microscope Illuminator
Building on the success of the popular pE-300 Series, the pE-400 is a simple bright white light Illumination System and a controllable, cost-effective replacement for mercury and metal halide lamps. Four powerful LEDs offer intense, broad-spectrum coverage for the most popular fluorophores, ranging from DAPI through YFP to Cy5.
- Global control of white light
- Broad spectrum white light from 365-635 nm, ranging from DAPI through YFP to Cy5.
- Seamless integration into compatible third party imaging software and cost-effective high-speed imaging with pE-6501 USB controlled TTL trigger box
- <10 µs global TTL triggering for camera synchronisation
- Simple control pod for intuitive manual operation
- Optimised irradiance control in 1% steps (0-100%)
- Direct fit variant available for higher irradiance with selected/all major microscope models
- Light delivery also available via liquid light guide.
Plus all the benefits afforded by LED Illumination Systems, such as sustainability and longevity.


CoolLED specialises in LED microscope lighting and, since our team of four introduced the first commercially available LED microscope illumination system in 2006, we have led the way in designing and manufacturing cutting edge LED Illuminators for Microscopes using the latest technology.




















