Radiant Warm Yellow Light 

The 150-Watt High Pressure Sodium (HPS) bulb emits a distinct 2000 Kelvin warm yellow glow, commonly used in industrial lighting, parking lots, security fixtures, and roadway lighting. While this technology has been a reliable choice for decades, HPS bulbs require frequent maintenance, have poor color rendering, and are less efficient than modern LED alternatives. 

90 Lumens Per Watt (lm/W) Efficiency 

This 100-Watt HPS bulb produces 9,000 lumens, achieving approximately 90 lm/W. While once considered a high-efficiency lighting solution, LED technology now delivers 80-150 lm/W, providing brighter illumination at a lower operating cost. 

Ballast Compatibility & Replacement Considerations 

This bulb requires an ANSI Code S54 ballast for proper operation. However, HPS ballasts degrade over time, leading to: 

• Reduced light output and efficiency 

• Flickering or slow warm-up times 

• Expensive ballast replacements 

If you’re experiencing frequent failures or rising maintenance costs, it may be time to consider a ballast-free LED retrofit, which eliminates the need for a ballast entirely. 

A Smarter, More Efficient Alternative 

If you’re replacing a burned-out HPS bulb, now is the perfect time to upgrade to LED. Here’s why: 

✔ Higher Energy Savings – Use less power without sacrificing brightness. 

✔ Longer Lifespan – LEDs last 3-5 times longer, reducing maintenance. 

✔ Instant-On Performance – No warm-up time or flickering. 

✔ Eliminate Ballast Failures – Retrofit LEDs bypass the ballast, so you never have to replace another ballast again. 

✔ Better Light Quality – LEDs offer improved visibility, whiter light, and better color accuracy, making spaces safer and more visually appealing. 

Still unsure about the best lighting solution for your fixture? Our team is here to help—just ask, and we’ll guide you to the perfect LED upgrade!