The Light Head Hanger system is an accessory for the NIGHTSEA Stereo Microscope Fluorescence Adapter. It is a combination of power extension cables and custom made holders that enables you to take the fluorescence excitation light heads off the gooseneck and mount them directly on the SFA adapter ring. In addition, it provides the capability to drive two light heads from one lamp base.
The extension cables plug into the gooseneck lamp base and can bring power to either one or two light heads.
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The Light Head Hangers mount to the end of any of the thumbscrews on the SFA adapter ring. They are available in long and short pivot arm versions for use with long and short working distance microscopes.
There are two main potential benefits with this new accessory:
Increase excitation intensity without buying a second lamp base
Until now if you wanted to increase the fluorescence excitation intensity of the SFA system you would need to buy a second light head and lamp base. This would take up additional real estate on your laboratory bench. With the Light Head Hanger system you can power two light heads from one base and mount them both directly to the NIGHTSEA adapter ring.
“We had some issue detecting red fluorescent proteins with some of our weaker transgenic zebrafish lines, but by shining two LED lights onto the same embryo, most of our weakest GFP and mCherry transgenic lines can now be detected. One light head was fine for reasonably bright specimens, and with two lights, the fluorescence is nearly the same as traditional stereomicroscopes priced $15-20K.”
Reduce the chance of accidentally bumping the light
Taking the light head off the gooseneck and mounting it directly to our microscope adapter reduces the chance of the light head being bumped so that it is not illuminating the subject on the microscope stage to best effect. This might be especially valuable if you are using the system for outreach demonstrations and multiple people will be working around the microscope.
The power cables are available in either single or dual light head versions. We changed the connector between the light heads and the gooseneck lamp base in July 2015, and the cables are available for both the original (Version 1, or V1) connectors and for the newer BNC connectors. Verify which version you have before ordering. Note that prices do not include the cost of an additional light head.
Abbreviations: HK – Hanger Kit, LWD – long working distance, SWD – short working distance
Master distributor – Electron Microscopy Sciences
Local microscope dealers – The Stereo Microscope Fluorescence Adapter and its accessories are also available from select local microscope dealers. If one of them referred you to the NIGHTSEA web site for more information, please go back to that reseller to place your order.