Prior Scientific Lumen 200S

The popular Lumen 200S from Prior Scientific retains the spectral output of traditional mercury (HBO) bulbs, whilst providing vastly improved light quality and a device that is both longer lasting and easier to use. It is ideal for use throughout a vast array of fluorescence applications and can replace an HBO bulb with a minimum of both cost and disruption to the existing set-up. Offering good value, a range of benefits over HBO bulbs, and high light quality, the Lumen 200 has the potential to vastly improve the quality of your fluorescence microscopy.

The bulb’s lifespan of 2000 hours, compared with a mere 200 hours for a conventional HBO bulb, means that bulb changes are now much less frequent - which means both less inconvenience and lower running costs

• An LED display clearly indicates the remaining time left until bulb replacement
• The light produced by the Lumen 200 is similar in output, but superior in quality, to that of an HBO - so the same fluorophores can be used and observed as before
• Connecting to the microscope via a liquid light guide, heat and vibrations transferred to the sample are significantly reduced. The liquid light guide also eliminates the need for time consuming alignment of the bulb after replacement
• Adapters are available for all modern microscopes, and are also fully compatible with the complete range of filter wheels and shutters produced by Prior

Producing the best images requires high quality light. The Lumen 200S produces light that, whilst similar to an HBO bulb, is superior in several respects. Intensity peaks with a larger bandwidth improve excitation, and the overall light brightness is greater. The liquid light guide homogenises the light, which combined with the bulb design means that bulb alignment is no longer needed, whilst reducing the transfer of heat and vibration from the Lumen 200 to the microscope and so reducing disruption to imaging. Finally, the stabilised DC power supply provides highly uniform light throughout the bulb’s lifespan, meaning that the Lumen 200S is ideal for quantitative and comparative fluorescent applications.

Offering all of the advantages of the standard Lumen 200, the Lumen 200 S has a number of features that further enhance its capabilities. Controllable via the ProScanTM controller and software, the Lumen 200S allows for a greater level of automation that provided by the Lumen 200 - ideal for time-lapse experiments. A shutter that closes in less than 30 ms means very brief exposure periods are now a possibility, reducing photobleaching and damage to valuable samples.