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Introducing the pE-300opto - LED Illumination for optogenetics

Introducing the pE-300opto - LED Illumination for optogenetics

23 Jun 2026 CoolLED

CoolLED are proud to announce the new pE-300opto, a light source designed specifically for neuroscience researchers using optogenetics.


The pE-300opto delivers precise, high-speed stimulation for both ex vivo and in vivo experiments, providing compatibility with a wide range of opsins – today and into the future.

Featuring three individually controllable LEDs (blue at 470 nm, green-yellow at 550 nm, and red at 635 nm), the pE-300opto covers the most popular opsins from ChR2 through to ChrimsonR.

A liquid light guide output comes as standard, ideal for ex vivo optogenetics under the microscope, as well as fluorescence imaging from GFP through YFP to Cy5. For in vivo experiments, an optional adaptor allows quick switching between the liquid light guide and SMA or FC fibres, offering unmatched flexibility.

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