# Part name:
Zeiss microscope 12V 100W P/N 39 25 85 power supply for HAL 100 halogen illuminator (392585 2...12V 165VA)

# Original page URL:
https://www.microscopeparts.eu/part/zeiss-axioskop-2-microscope-12v-100w-p-n-39-25-85-power-supply-for-hal-100-halogen-illuminator-392585-2-12v-165va-99634

# 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:
Carl Zeiss power supply for microscopes using illuminators with 12 V 100 W lamps (most commonly halogen lamps).

Basic specifications of the power supply:
Manufacturer: Carl Zeiss
Model: NAG 2...12V 100W
Catalogue number: 39 25 85
Input: 100-110-120-127-220-240 V
Output: 12 V
Output power: 100 W
Power connector: separate computer-type power cable
Potentiometer: yes, smooth brightness adjustment

Designed for any microscope illuminator using a light source (lamp) rated at up to 100 W and operating at 12 V. It is most commonly used with external HAL 100 halogen illuminators (so-called Lampenhaus units), for example in reflected-light EPI illuminators.

This power supply can be used with illuminators and microscopes from any manufacturer. Here are several configurations verified in practice:
- compatible with the PZO Biolar DIC microscope fitted with the PZO OH-1 halogen illuminator, replacing the PZO ZM-100 or PZO ZH-100 power supply
- if the internal power supply in the base of an Olympus BH-2 BHS microscope fails, the original halogen illuminator can be powered using this external Zeiss power supply
- compatible with the large external halogen illuminator used for reflected-light EPI illumination on Carl Zeiss Jena Amplival Pol and Vertival microscopes
- also compatible with the Reichert Zetopan microscope equipped with the LUX-US 12 V 100 W halogen illuminator

Note – different manufacturers and different illuminators may use different pin spacing in their 12 V connectors. It may therefore be necessary to modify the connector in order to connect it to this Zeiss power supply.

# Examples of use
- if you're missing a power supply
- if your power supply is damaged
- if you're using two illuminators and need a second power supply

# Removed from microscope:
Zeiss Axioskop 2

# Also compatible with the following microscopes:
Zeiss Axioskop 2

# Names, descriptions, terms, and search contexts under which this part is searched.
- Zeiss Axioskop 2 microscope repair parts
- Carl Zeiss microscope 12V 100W power supply
- Zeiss Mikroskop 12V Halogen-Trafo
- Zeiss Axio 12V 100W Mikroskop Lampe Netzgerät
- Zeiss 100W Mikroskop Beleuchtung Netzteil
- Zeiss buy spare parts

# Related URLs:
- Markdown po polsku: https://www.serwismikroskopowy.pl/part/99634.md
- Markdown auf Deutsch: https://www.mikroskopteile.de/part/99634.md
- Gallery of all photos of this part: https://www.microscopeparts.eu/gallery/99634-zeiss-axioskop-2-microscope-12v-100w-p-n-39-25-85-power-supply-for-hal-100-halogen-illuminator-392585-2-12v-165va
- Media manifest of this part (photos + videos, for AI/RAG): https://www.microscopeparts.eu/part/99634.media.md
- Representative photo: https://www.microscopeparts.eu/photo/zeiss-axioskop-2-microscope-12v-100w-p-n-39-25-85-power-supply-for-hal-100-halogen-illuminator-392585-2-12v-165va-99634-2
- Other parts from category Power supplies (transformers): https://www.microscopeparts.eu/power-supplies-transformers
- More Power supplies (transformers) removed from microscope Zeiss Axioskop 2: https://www.microscopeparts.eu/power-supplies-transformers/from/zeiss/axioskop-2
- More Power supplies (transformers) compatible with microscope Zeiss Axioskop 2: https://www.microscopeparts.eu/power-supplies-transformers/for/zeiss/axioskop-2
- 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: 2026-07-24