Light Efficient Design LED-8101-40K LED SOX55 Retrofit Lamp - 35W - 4000K - 5,156 Lumens - 120-277V

The LED-8101-40K is a LED SOX retrofit lamp designed to replace older low-pressure sodium SOX luminaires with modern, energy-efficient illumination. At 35 watts, it delivers about 5,156 lumens with a color temperature of 4000K, providing a suitable neutral-white light for outdoor and area-wlood lighting applications while maintaining dark-sky considerations through its directional output. The design emphasizes efficient heat management and reliability, featuring an innovative aluminum heat sink and advanced active cooling to help sustain performance over its long rated life. The internal LED driver is USA designed and specified, contributing to consistency and quality of light as well as streamlined installation with a built-in support harness included in the package. With a wide input voltage range of 120–277V and a 6 kV surge protection rating, the lamp is adaptable to various supply conditions and less susceptible to power transients.

This retrofit targets facilities looking to upgrade from 55W low-pressure sodium lamps to a more energy-efficient source without sacrificing light quality or sky visibility. The unit is rated for up to 50,000 hours of operation, which can reduce maintenance and replacement cycles in applicable outdoor or industrial settings. Its bayonet base and compact form factor—approximately 16.7 inches long and 2.83 inches in diameter—facilitate installation in existing SOX fixtures or compatible housings, often simplifying retrofits where form factor and mounting are a consideration. The fixture is designed to operate across a wide temperature range, down to -40°F, enabling performance in a variety of climates.

When planning a retrofit, consider the compatibility of the luminaire with your existing SOX mounting provisions and electrical wiring to ensure a proper, straightforward installation. The product’s specifications identify lumen output, efficiency, and color temperature as key factors affecting light distribution and visibility in outdoor work areas, parking lots, or walkways. This model carries a specific equivalence to a 55W LPS source, which helps in evaluating expected energy savings and lighting levels compared to legacy lighting.

Features:

• 120-277V operation
• Advanced active cooling
• 6kV surge protection
• USA designed and specified internal LED driver
• Innovative aluminum heat sink
• Includes support harness
• Operating temperature: -40°F to 122°F
• 50,000 hour rated