Description
Zeiss 91 01 44 Stabilized Arc Lamp Power Supply 75W DC Xenon 100W Mercury 120V
The Zeiss 91 01 44 is a stabilized DC arc lamp power supply designed to drive either 75W DC Xenon or 100W DC Mercury arc lamps used in Zeiss microscope illumination systems. It provides a regulated DC output to maintain consistent lamp brightness — critical for fluorescence microscopy and photomicrography where stable illumination is essential. This unit was manufactured for Zeiss by IQ of Scarsdale, NY and carries only 333.1 logged hours of use, confirmed by the Hobbs hour meter on the front panel.
Specifications & What's Included
- Model: 91 01 44
- Manufactured for Zeiss by IQ, Scarsdale, N.Y.
- Input Voltage: 120V AC
- Input Power: 150W
- Input Frequency: 60Hz
- Rated for: 75W DC Xenon arc lamps
- Rated for: 100W DC Mercury arc lamps
- Fuse 1: 8A (top position)
- Fuse 2: 4A (bottom position)
- Output connector: multi-pin circular connector (rear panel)
- Hour meter: Hobbs (Stewart Warner) — reads 00333.1 total hours
- Front panel: illuminated red POWER switch, two red FUSE press-buttons
- Rear: large finned aluminum heatsink for thermal management
- Powers on without errors
Applications
Stabilized arc lamp power supplies like the Zeiss 91 01 44 are used in research-grade optical microscopy systems where consistent, regulated illumination is required. Xenon arc lamps produce a broad, continuous spectrum closely resembling daylight, making them well suited for fluorescence microscopy, spectroscopy, and color-accurate photomicrography. Mercury arc lamps produce intense emission peaks particularly useful for exciting common fluorescent dyes and stains (DAPI, FITC, TRITC). Zeiss has long used this type of regulated DC supply in their Axioplan, Axiophot, and Axiovert series microscopes, among others. A stabilized supply maintains constant current to the arc, preventing the lamp flicker that would otherwise degrade imaging and exposure consistency. With only 333 hours logged, this unit has a substantial portion of typical lamp-supply service life remaining, making it a practical replacement or spare for Zeiss fluorescence microscopy setups.
This Zeiss 91 01 44 Stabilized Arc Lamp Power Supply is in very good physical condition with only 333.1 logged hours of use, as confirmed by the Hobbs hour meter visible on the front panel. The unit powers on without errors. The aluminum enclosure shows light surface wear consistent with lab use, but overall presents cleanly. The front panel controls, fuse buttons, and power switch are all intact and functional. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Zeiss |
Model: |
91 01 44 |
MPN: |
91 01 44 |
SKU: |
35225 |
Type: |
Stabilized Arc Lamp Power Supply |
Input Voltage: |
120V AC |
Input Power: |
150W |
Input Frequency: |
60Hz |
Lamp Type 1: |
75W DC Xenon |
Lamp Type 2: |
100W DC Mercury |
Fuse Rating 1: |
8A |
Fuse Rating 2: |
4A |
Output Connector: |
Multi-pin circular connector (rear) |
Hour Meter Reading: |
333.1 hours (Hobbs meter) |
Compatible With: |
Zeiss microscope arc lamp illuminators |
Country/Region of Manufacture: |
United States |
Seller Notes: |
Unit only — no additional accessories confirmed included. |
Condition Notes: |
This Zeiss 91 01 44 Arc Lamp Power Supply is in very good physical condition with only 333 hrs logged on the Hobbs meter. Powers on without errors. Light surface wear consistent with lab use. Please contact us with any questions. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
