
Development and assembly of custom electronics and lighting solutions for photonics applications, plus LED light sources and power supplies.
LEJ - Leistungselektronik JENA GmbH
Jena ·New on Amplifa
About LEJ
LEJ - Leistungselektronik JENA GmbH is a company founded in 1991 and based in Jena, which was spun off from the ZEISS research department. The company develops and assembles complex mechatronic and opto-electronic assemblies and systems – from prototypes to small series. In addition to custom OEM solutions, LEJ offers a portfolio of standard products under its own brands LUXYR (lighting solutions) and AMPYR (power supplies). The product range includes LED light sources, gas discharge light sources, LED driver electronics and electronic ballasts. LEJ supplies well-known brand manufacturers worldwide and is certified to DIN EN ISO 9001:2015. The solutions are used in industries such as microscopy, the semiconductor industry, analytics, image processing and medical technology. About one third of the team is employed in development.
- Site
- Jena
- Processes
- Contract assembly of mechatronic and opto-electronic assemblies, Prototype & small-series assembly (construction of samples in the (prototype) workshop), Development of custom electronics and lighting solutions (mechatronic and, Development services, OEM systems & solutions (products in customer design), Repairs (directly on site), Inspection/testing according to DIN EN 61010, NRTL and EMC control standards, Development of custom electronics and lighting solutions (OEM)
- Materials
- Development Services, Contract Assembly, OEM Systems & Solutions, Inspection & Testing
- Certificates
- DIN EN ISO 9001:2015, Assembly according to DIN EN 61010, NRTL control standard, EMC control standard
- Founded
- 1991
- Industries
- Microscopy, Semiconductor industry, Analytics, Image processing, Medical technology, Research
- 01
Engineering (development of custom electronics and
- 02
Prototype construction in own workshop
- 03
Contract assembly of mechatronic and opto-electronic assemblies
- 04
Testing according to DIN EN 61010, NRTL and EMC control standards
- 05
Service (repair and documentation service)
Development and Manufacturing Services
Development Services
Custom development of mechatronic and opto-electronic assemblies and systems according to customer specifications.
Contract Assembly
Assembly of mechatronic and opto-electronic assemblies for quantities of 10–1,000.
OEM Systems & Solutions
Products in customer design as a small-series supplier for OEM components and systems.
Inspection & Testing
Assembly according to DIN EN 61010, NRTL and EMC control standards.
Site

Jena
DEHeadquarters: development, prototype and small-series assembly
- Lot size
- 10–1,000 pieces
- Materials
- Mechatronic and opto-electronic assemblies
- Prototype workshop
- Assembly according to DIN EN 61010, NRTL and EMC control standards
Products & Assemblies









Inside the production








Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Contract assembly of mechatronic and opto-electronic assembliesAssembly | – | – | – | 10 pieces – 1,000 pieces | – |
| Prototype & small-series assembly (construction of samples in the (prototype) workshop)Assembly | – | – | – | – | – |
| Development of custom electronics and lighting solutions (mechatronic andEngineering | – | – | – | – | – |
| Development servicesEngineering | – | – | – | – | – |
| OEM systems & solutions (products in customer design)Engineering | – | – | – | – | – |
| Repairs (directly on site)Assembly | – | – | – | – | – |
| Inspection/testing according to DIN EN 61010, NRTL and EMC control standardsInspection | – | – | – | – | – |
Additional services
Reference customers
Quality & Certification
LEJ is certified to DIN EN ISO 9001:2015 and assembles according to DIN EN 61010, NRTL and EMC control standards. The complaint rate is below 1% with around 6,000 products sold per year.
| Evidence | Jena |
|---|---|
| DIN EN ISO 9001:2015 | |
| Assembly according to DIN EN 61010 | |
| NRTL control standard | |
| EMC control standard |
History
- 1991
Founded by Dieter Deinhardt and Wolfgang Ketscher, spun off from the ZEISS research department
- 1996
Relocation to Jena-Göschwitz
- 2006
Own company building in the JenA4 industrial park, relocation to Jena-Lobeda
- 2016
Introduction of the own brands LUXYR (lighting) and AMPYR (power supplies)
- 2017
Sabine Gottschaldt joins the management board (commercial)
- 2021
Dr. Jörg Wagner joins the management board (technical)
- 2022
30th anniversary celebration at the company site
- 2023
New LED light sources NANO, MAGNA and PICO for microscopy