Breaking the Barrier: High-Efficacy 1900K HPS Replacement for Street Lighting

For decades, the global lighting industry has faced a significant hurdle. While most inefficient technologies have died out because of sustainability mandates, High Pressure Sodium (HPS) lamps remained a stubborn exception. Even with their mercury content and lagging efficiency, HPS lamps have frequently bypassed regulatory restrictions, such as those set by the Minamata Convention.

The situation was driven by necessity rather than performance, as the market lacked a viable alternative that could replicate the specific benefits of the HPS signature amber glow (1900K–2200K). As a result, these lamps became the global standard for street and industrial lighting not only because of their irreplaceability, but also because of their superior atmospheric penetration in fog and rain and minimal ecological impact on nocturnal wildlife. Most importantly, the public consistently preferred their warm, comfortable glow over the harsh glare of standard white LEDs.

Previous transitions to standard 3000K or 4000K LEDs often fell short, causing visual discomfort and excessive 'sky glow' that stalled mercury-free initiatives worldwide. Addressing these challenges head-on, as a leading expert in this field, Edison Opto specialize in high-performance LED packaging, and we are proud to announce a breakthrough in spectral engineering. Our 1900K LED Technology serves as the industry’s first true LED successor to HPS, bridging a long-standing gap in sustainable lighting. The result is a mercury-free, energy-efficient solution that does not compromise on visual performance.

Key Technical Advantages

1.Exact Spectral Matching (1900K CCT) 

Utilizing our proprietary phosphor technology, we achieve a native Correlated Color Temperature (CCT) of 1900K. This delivers the precise visual comfort and nostalgic amber hue of sodium lamps while significantly enhancing clarity through a superior Color Rendering Index (CRI)—surpassing the poor color performance of legacy HPS systems.

2.Mercury-Free Sustainability 

Our 1900K technology removes the final technical barrier to global mercury bans, such as those mandated by the Minamata Convention. By providing a high-performance, drop-in replacement, we enable municipalities and businesses to eliminate hazardous mercury from their waste streams without compromising the aesthetic integrity or functional requirements of their existing lighting environment.

3.Superior Efficiency & Operational Excellence 

Edison 1900K series preserves the soul of HPS while harnessing the full power of modern solid-state lighting:

·Instant-On Capability: Eliminates the lengthy warm-up times required by HID lamps.

·Drastic Energy Savings: Significantly outperforms legacy magnetic ballast systems in luminous efficacy. 

·Enhanced Longevity: Reduction in maintenance costs and frequency due to an extended operational lifespan.

The transition is already underway. From Europe to Latin America—regions with a historically strong preference for warm street lighting—Edison Opto’s 1900K solution is already being deployed with outstanding results. This real-world feedback confirms that visual comfort and environmental responsibility can, and should, coexist.

Ultimately, the wait for a true HPS replacement is over. At Edison Opto, we are dedicated to leading the industry toward a greener future, proving that we never have to sacrifice the quality of light for the sake of sustainability.

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