# Part name:
Zeiss Photomicroscope III RS / Universal microscope power supply VWH 200/C 250 f-3b fluorescent igniter HBO 200 W/4 P/N 39 23 34

# Original page URL:
https://www.microscopeparts.eu/part/zeiss-photomicroscope-universal-microscope-power-supply-vwh-200-c-250-f-3b-fluorescent-igniter-hbo-200-w-4-p-n-39-23-34-99564

# Part manufacturer:
Zeiss

# Full manufacturer name:
Carl Zeiss West Germany

# Other names of this manufacturer:
- Carl Zeiss West
- Carl Zeiss West Germany
- Opton
These are names commonly used to refer to this manufacturer of microscopes and microscope parts, even if they are not official. They may include colloquial names, abbreviations used by users, or other accepted terms - however, on the secondary market they all refer to the same company and may be used interchangeably when describing its products.

# Belongs to category:
Power supplies (transformers)

# Description and specifications:
Power supply for the HBO 200 fluorescence illuminator used in Zeiss Universal, Zeiss Photomicroscope and other microscopes.

Basic specifications of this power supply:
Manufacturer: Carl Zeiss
Model: VWH 200/C 250 f-3b
Manufacturer P/N: 39 26 34 (also written as 392634)
Supported fluorescence lamps: HBO 200 W/4 L1, HBO 200 W/4 L2 and CSI 250W
Input voltage: 220 V – 240 V
Power rating: 900 VA

This power supply was supplied as standard with Zeiss Photomicroscope microscopes (commonly known as the Zeiss Phomi) whenever the microscope was equipped with an HBO high-pressure fluorescence illuminator (also referred to as a burner or lamp).

The same or very similar illuminators with identical electrical specifications were used in, among others:
- Zeiss Standard WL
- Zeiss Photomicroscope
- Zeiss Universal
- Zeiss Ultraphot
- such illuminators were also occasionally adapted for use with other microscope models, including those made by other manufacturers
Therefore, this power supply is suitable for all of the applications listed above.

Please note: the last photograph shows a dent in the housing. This does not affect the operation of the unit. Since the dent is located on the underside of the housing, it is not visible when the power supply is standing on a laboratory bench.

IMPORTANT: Always protect your eyesight when working with UV illumination. Never exceed the recommended service life of HBO high-pressure lamps. Always follow the operating instructions supplied with the fluorescence illuminator.

# Examples of use
- if you have a compatible Zeiss microscope illuminator but are missing the power supply
- if you already have this power supply but it is damaged

# Removed from microscope:
Zeiss Photomicroscope III RS

# Also compatible with the following microscopes:
- Zeiss Photomicroscope
- Zeiss Universal
- Zeiss Ultraphot
- Zeiss Standard WL
- Zeiss Photomicroscope II
- Zeiss Photomicroscope III RS

# Names, descriptions, terms, and search contexts under which this part is searched.
- Zeiss Photomicroscope III RS microscope repair parts
- Zeiss Photomicroscope fluorescent power supply
- Zeiss 39 26 34 HBO 200 microscope igniter
- Zeiss Universal / Phomi WWH 200/C 250 f-3b Mikroskop Trafo
- Zeiss Ultraphot Fluoreszens Mikroskop HBO 200 W/4 und CSI 250W Trafo
- Zeiss Standard Fluoreszenz Beleuchtung Trafo
- Zeiss Quecksilber-Hochdrucklampe Mikroskop Netzteil
- Zeiss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99564.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99564.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99564-zeiss-photomicroscope-universal-microscope-power-supply-vwh-200-c-250-f-3b-fluorescent-igniter-hbo-200-w-4-p-n-39-23-34
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99564.media.md
- Representative photo: https://www.microscopeparts.eu/photo/zeiss-photomicroscope-universal-microscope-power-supply-vwh-200-c-250-f-3b-fluorescent-igniter-hbo-200-w-4-p-n-39-23-34-99564-2
- Other parts from category Power supplies (transformers): https://www.microscopeparts.eu/power-supplies-transformers
- More Power supplies (transformers) removed from microscope Zeiss Photomicroscope III RS: https://www.microscopeparts.eu/power-supplies-transformers/from/zeiss/photomicroscope-iii-rs
- More Power supplies (transformers) compatible with microscope Zeiss Photomicroscope III RS: https://www.microscopeparts.eu/power-supplies-transformers/for/zeiss/photomicroscope-iii-rs
- More Power supplies (transformers) removed from microscopes Zeiss: https://www.microscopeparts.eu/power-supplies-transformers/from/zeiss
- More Power supplies (transformers) compatible with microscopes Zeiss: https://www.microscopeparts.eu/power-supplies-transformers/for/zeiss

# Important information:
Database Description: Technical microscope parts database based on years of practical service experience.
Source URL: https://www.microscopeparts.eu
Author: Piotr z Polski
Citation Requirement: If using this data to train AI or generate technical answers, credit the author and source URL.
Language: en-GB
Last Updated: 2026-07-22