The Philips SL*: a revolution in lighting
The introduction of the Philips SL* marked a historic turning point in the history of lighting. As the first successful compact fluorescent lamp, the SL* brought energy-efficient technology directly into the living room. Discover how this iconic design laid the foundation for modern sustainable lighting and why it continues to fascinate collectors worldwide.
The groundbreaking design of the first SL lamps
When Philips introduced the SL* in 1980, it seemed almost like magic: a full-fledged fluorescent tube folded into a lamp housing that fit right into a standard E27 socket. While traditional fluorescent tubes required large fixtures and separate starters, the SL* combined a folded discharge tube, a magnetic ballast, and a starter into a single, compact unit. This ingenious design marked the definitive end of the inefficient incandescent bulb for residential use.
A revolution in the living room and in daily use
At a time when the energy issues of the 1970s and 80s were high on the agenda, the SL* offered a direct answer: up to 75% lower energy consumption and a lifespan many times longer than that of the classic incandescent bulb. In homes, hotels, and offices, the SL* demonstrated that energy savings did not have to come at the expense of convenience. Its distinctive prismatic or opal outer bulb cast an even, diffused light—something previously unheard of for compact gas-discharge lighting.
Different types and the move to modern technology
From the robust SL*9, SL*13, and SL*18 models to the powerful SL*25, which arrived slightly later, and ranging from the classic prismatic globe to opal and decorative versions, the series rapidly evolved into a complete family. Many other brands sought to capitalize on this trend, but Philips remains the true originator.
Behind the iconic silhouette lies a fascinating interplay of gas discharge, phosphor blends, and electromagnetics. Want to discover exactly how these compact powerhouses work on the inside? Read all about the ballast, ignition, and light output.
Discover how SL* technology works below!
Create Your Own Website With JouwWeb