Welcome on The SL Forum

Discover the fascinating world of the Philips SL*  and other electronic energy-saving lamps. The SL Forum is your digital museum, archive, and forum for everything related to these iconic lamps.

What can you find on the SL forum?

Dive deeper into the history, technology, and diversity of electronic energy-saving lamps.

The SL* lamp

Learn all about the development, generations, and technical specifications of Philips SL* lamps, a true revolution in lighting.

A collection

Browse the database of approximately more than 300+ different SL lamps from brands such as Philips, Osram, Mazda and much more! 

Data and more

Explore information about date codes, markings, logos, countries of manufacture, and factories that shape the history of these lamps.

The archive

Dive into the archive of packaging, brochures, catalogs, advertisements, and technical documents from the heyday of the energy-saving light bulb.

About The SL Forum

The SL Forum was born from my passion for how special these lamps were for their time. We strive to be a comprehensive resource for collectors and enthusiasts of the Philips SL* and similar energy-saving lamps.

Come in contact or share ideas!

Do you have questions, want to share information, or discuss special lamps? Leave your ideas in the comment section or start a discussion! Contacting me personally is also possible.