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Electrical and performance Specification Details System Efficacy High-efficiency models typically provide over 110 lumens per watt (Lm/W), converting more electrical energy into light. For example, the Luminospark LED Highway Light offers 140 Lm/W. Power Factor Good quality street lights feature a power factor of greater than 0.9 at their rated voltage. Rated Lifetime The lifespan of LED street lights is significantly longer than conventional lighting. Many manufacturers rate their LEDs for over 50,000 burning hours at L70, which is the time at which light output has decreased to 70% of its initial output. Input Voltage A wide operating voltage range, such as 100“300V AC, allows for stable operation even with fluctuations in the power supply. Color Temperature (CCT) Common color temperatures include Cool White (6500K), Warm White (3000K), and Neutral White (4200K). Color Rendering Index (CRI) A high CRI value, typically 80 or higher, indicates the fixture's ability to accurately reproduce colors, improving visibility for drivers and pedestrians. Surge Protection Integrated surge protection devices (SPDs), often rated at a minimum of 10 kV, protect the light from damage caused by voltage spikes from lightning strikes or other electrical disturbances. Lumen Output This varies widely depending on the wattage and intended application. For example, the Goldmedal Torus 24W offers 100 Lm/W, while the Sturlite Asteor 100W delivers 11,000 lumens. Total Harmonic Distortion (THD) A THD value of less than 10% ensures a clean power draw from the grid.