
Development and production of LED workplace, machine, office and care luminaires in Schweinfurt.

SIS-Licht GmbH & Co. KG
SchweinfurtNew on Amplifa
About SIS-Licht
SIS-Licht GmbH & Co. KG is a company founded in 1924, family-run in the fourth generation, based in Schweinfurt, specializing in the development and production of adjustable workplace and machine luminaires. The product range includes LED articulated-arm luminaires, flexible-arm luminaires, magnifier luminaires, protective-tube luminaires (IP 67) and surface-mounted luminaires for machines and systems, LED light bars and system luminaires for production, assembly and test benches, ESD luminaires for the electronics industry, as well as pendant and articulated-arm luminaires for office workplaces. The range is complemented by bed luminaires and wall luminaires for hospitals and care facilities, and, together with the partner Lichttechnik Meier, by luminaires for dental technology, watchmaking and goldsmithing. The machine luminaires are designed for harsh production environments – vibration- and shock-resistant, oil-resistant, resistant to flying swarf and available with ingress protection ratings up to IP 67, with protective tubes made of borosilicate glass (safety glass). Distribution is via original equipment manufacturers and trade partners at home and abroad as well as directly to industrial customers such as Kern Technik GmbH & Co. KG, which equips measuring and testing stations with LED system luminaires. Production takes place at the headquarters in Schweinfurt, where sales and administration are also located.
- Site
- Schweinfurt
- Processes
- Development and production of workplace and machine luminaires, Customer-specific solutions / special series, Dimmable luminaire systems, ESD luminaires, Distribution via original equipment manufacturers, trade partners at home and abroad, and directly, Climate-neutral parcel shipping (GLS KlimaProtect)
- Materials
- Borosilicate glass (safety glass), Polycarbonate, LED modules and LED converters
- Certificates
- GLS KlimaProtect (climate-neutral parcel shipping), IP classification according to DIN EN 60529
- Founded
- 1924
- Industries
- Mechanical engineering (turning, milling and drilling machines, machining, Automation technology, Assembly and test benches, Electronics industry (ESD), Office, Hospitals and care facilities
- 01
Development
- 02
Production
- 03
Sales
Materials and Properties
Borosilicate glass (safety glass)
Transparent protective tubes of the machine luminaires ensure high break resistance and resistance to dust, oils, lubricants and coolants.
Polycarbonate
Clear PC panels and multi-lens systems are used in articulated-arm and machine luminaires.
LED modules and LED converters
High-quality, maintenance-free LED technology with flicker-free, optionally dimmable light for workplaces and machines.
Locations
Schweinfurt
DEHeadquarters: Production, Sales, Administration
- Lot size
- Special series up to large orders
- Materials
- LED modules, borosilicate glass, plastic
Products








Inside the production





Industries
Additional services
Reference customers
Quality
The high level of in-house production and close cooperation with selected suppliers ensure, according to the company, smooth operations and comprehensive quality assurance. Luminaires are classified by ingress protection (IP codes) according to DIN EN 60529.
| Evidence | Schweinfurt |
|---|---|
| IP classification according to DIN EN 60529 | |
| GLS KlimaProtect (climate-neutral parcel shipping) |
History
- 1924
Founded by Karl Lang jun. (with partner Max Klöffel) on Luitpoldstraße in Schweinfurt; idea of the swivel lamp, first patent for a double rotary joint for carrying arms of electric luminaires.
- 1925
New start with Rudolf Dähn under the name R. Dähn & K. Lang (SIRIUS) at the Zeughaus in Schweinfurt; brother Erich Lang joins.
- 1935
Patent specification by Karl Lang for the “adjustable electric work luminaire with double-surface deep reflector”.
- 1970er
Erich Lang's sons Heinz and Karl continue to run the company.
- 2000
Stefan Lang (4th generation) takes over the management.
- 2024
100th company anniversary with IHK honorary certificate; new products, further developments and customer-specific solutions.