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LEJ is your provider of high-performance Illumination as well as Power Electronic solutions in the fields of Microscopy, Analytics, Semiconductor, Industry as well as Medical Technology.

Besides its comprehensive portfolio of brand products LEJ offers the highest degree of flexibility and speed to bring customer-/application-specific products to the market. World-known OEMs count on LEJ as their system provider for e.g. laser and system power supplies, LED high performance controller as well as their partner for contract assembly of complex opto-mechanical and opto-electronical sub-assemblies and systems.

Product innovations


Discover our product developments and innovations

„Illumination & Laser“ - Webinar

In May of this year, our CEO Dr. Wagner presented the LEJ portfolio of light sources, products for machine vision and UV applications as part of the inVISION TechTalks series:



The corona pandemic has presented us all with great challenges for more than a year, so we are also pleased to see the current decline in the number of cases. Despite this positive trend, we will of course continue to adhere to the hygiene and infection protection measures of the federal government, the state and the city, as the health of our employees, partners and customers is our highest priority. Business trips and customer visits will continue to be carried out only in absolutely necessary cases, the contact via telephone and online media is given priority

Our manufacturing and warehousing processes are currently not affected, so we produce as planned and supply our customers. We have also taken measures to safeguard our inventory and supply chain, as there is currently a noticeable trend towards extended lead times from our suppliers. However, we are currently able to fulfil all existing orders. We will keep you informed on this matter.

Stay safe and healthy!

Your LEJ team