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  • About Us
    • About Us
    • Meet The Team
    • CoolLED Mission
    • Compliance
  • Products
    • Product Range
    • Product Comparison
    • pE-800 Series
      • pE-800
      • pE-800fura
    • pE-400 Series
      • pE-400
      • pE-400max
    • pE-4000
    • pE-300 Series
      • pE-300lite
      • pE-300white
      • pE-300ultra
      • pE-300opto
    • pE-340fura
    • pE-100
    • pT-100
    • OEM Illumination
    • Accessories
    • Adaptors
  • Support
    • Support
    • Why LED Illumination?
    • Video Resources
    • Optical Filters
    • Imaging Software
    • Health and Safety
    • Warranty
  • Technical Resources
    • Resources Library
    • App Notes
    • Image Galleries
    • Interviews
    • Research Papers
    • Testimonials
    • White Papers
  • Sustainability
    • No More Mercury – The Phase Out of Mercury & Metal Halide Bulbs
    • Good Health and Well-Being
    • Gender Equality / Reduce Inequalities
    • Industry, Innovation and Infrastructure
    • Responsible Consumption and Production
    • Climate Action
    • Mercury Free Microscopy
    • Aims for the Future
  • Insights & Events
    • News
    • Events
    • Newsletters
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  • Contact
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Blog

Introducing the pE-300opto: A Simple, Precise Light Source for Optogenetics

Introducing the pE-300opto: A Simple, Precise Light Source for Optogenetics

February 20, 2026

Optogenetics is all about precise control: the right wavelength, the right intensity, the right timing.  The pE-300opto is built to deliver exactly that, offering just the wavelengths and control that matter, in a compact, affordable package.

CoolLED supports EBP South “Get Inspired”

CoolLED supports EBP South “Get Inspired”

February 13, 2026

We recently attended EBP South’s ‘Get Inspired’ event, where Marina, Alex and Andrew spent a busy day speaking with young people about careers in STEM

Top 5 Signs Your Microscope Setup Is Working Against You

Top 5 Signs Your Microscope Setup Is Working Against You

February 6, 2026

Have you ever felt like your microscope has a slight vendetta against you?  It seems to works okay for everyone else, but for you it’s like trying to convince a really tired toddler to put their shoes on?  Chances are, it might not be your fault…

Why Metal Halide and Mercury Lamps Are Being Phased Out and What’s Replacing Them

Why Metal Halide and Mercury Lamps Are Being Phased Out and What’s Replacing Them

January 30, 2026

The February 2027 global move away from mercury/metal halide bulbs marks a turning point for safer, more sustainable illumination

The Difference Between “It Works” and “I Trust It”

The Difference Between “It Works” and “I Trust It”

January 23, 2026

Have you ever had a piece of kit that technically works, as long as you approach it in the right mood, at the right time, and without making any sudden movements?  And wouldn’t it be nice to have something that just… behaves?

The Difference Between Bright and Useful Illumination

The Difference Between Bright and Useful Illumination

January 16, 2026

In fluorescence microscopy, useful illumination is the kind you don’t ever need to think about. And that’s usually the sign it’s doing its job perfectly…

The Questions No Spec Sheet Really Answers

The Questions No Spec Sheet Really Answers

January 9, 2026

We’re renowned for our incredible tech support and extensive resource library.  This blog delves into the questions that are rarely on the spec sheet but are useful in day-to-day microscopy

The Cosy Comfort of a Setup You Can Trust

The Cosy Comfort of a Setup You Can Trust

December 19, 2025

As the year winds down, a microscope quietly shows us that progress isn’t about one standout component, but about everything working in harmony

How LEDs Keep Your Experiments Bright All Winter

How LEDs Keep Your Experiments Bright All Winter

December 12, 2025

In the spirit of frosty mornings, here’s a blog about why LEDs are particularly well-behaved companions even during the chilliest months

If Fluorophores Had Performance Reviews

If Fluorophores Had Performance Reviews

December 5, 2025

Everyone needs a performance review, even Fluorophores, and as with any employee, getting the best out of them is all about understanding what they need…

A Day in the Life of a Fluorophore

A Day in the Life of a Fluorophore

November 28, 2025

Fluorophores are a bit like colourful employees working the world’s most demanding shift pattern, who just need a bit of gentle encouragement to get them through their day…

From Mercury to Modern LEDs: A Turning Point for Fluorescence Microscopy

From Mercury to Modern LEDs: A Turning Point for Fluorescence Microscopy

November 21, 2025

With the ban in Feb 2027 in mind, it’s only fair to give credit where it’s due: Mercury and metal-halide bulbs got fluorescence microscopy this far. LEDs will take it the rest of the way

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Custom Microscopy Illumination

Need something a little different?

For manufacturers who wish to gain a competitive advantage through bright, stable and controllable illumination, CoolLED’s world-renowned LED technology is available in customised configurations.

  • Streamlined development using proven off-the-shelf technology
  • Professional support
  • Market-leading warranty
  • ‘Try before you buy’ option
  • Trusted experts in LED illumination technology since 2006
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OEM Family Range

Sustainability

Did you know that LED illumination systems help laboratories reduce their carbon footprint, protecting laboratory staff along the way?

Toxic mercury-based microscope illuminators are bad news for the environment, draw a lot of power and have a short lifetime.

LED illumination systems are cleaner, have a long lifetime and use less power. Our pE-300 Series is also ACT label certified and is a natural choice for labs who want to play their part in helping the environment.

LEARN MORE

Help & Advice

At CoolLED we are committed to giving our customers outstanding service right from the start and throughout the lifetime of the product. Please get in touch if you have any questions or would like a quote. You can also browse our site for technical resources and general support.

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