GEC 400w SON E E SolarColour HPS Lamp E40

Introducing the GEC 400 W SON‑E / SolarColour high‑pressure sodium (HPS) lamp with an E40 screw base – engineered for demanding exterior and industrial lighting applications. This lamp draws 400 W and is configured for a GES/E40 cap, making it suitable for many conventional high‑bay, street‑lighting or area‑lighting luminaires. The “SolarColour” variant enhances the typical HPS spectrum to deliver improved colour rendering (Ra ≈ 70) compared with standard HPS lamps, while still maintaining high luminous efficacy. With a luminous flux of around 36,000–38,000 lumens and efficacy near 95–100 lm/W (400W version) for the SolarColour type.

Designed for robust performance, this lamp supports universal burning position, an approximate rated life of 10,000 hours (70% survival) for the SolarColour variant.  Proper operation requires compatible high-pressure sodium ballast/gear and a luminaire rated for HPS lamps. The wide lamp envelope (~285 mm length, ~122 mm diameter) means you should check fixture clearance and cooling provisions. Ideal for large‑area outdoor zones—car parks, streets, perimeter lighting or warehouses—where both high output and acceptable colour quality are required. Please ensure disposal compliance (mercury content) and note that these legacy HPS lamps may be increasingly replaced by LED alternatives.