Outdoor LED Lighting

Outdoor LED Lighting What is Outdoor LED MH and HPS are relatively energy- efficient light sources have been in use for many years LED outdoor luminaires provide the surface illuminance using less energy and improves uniformity Properties of outdoor LED lights Energy Efficiancy Durability Color Life and lumen maintenance Energy Efficiency hervse LED doesn't contain mercury, lead, or other known disposal hazards So the energy consumption by outdoor LED lighting is relatively less Comparison of HPS and LED Outdoor Luminaires 150 W HP 175 W MH (Metal Halide) (Light Emitting Lights LED (High Pressure Sodium) Lights Diode) Lights Luminaire (system) watts 183W 208W 153W Correlated Color Temperature 4000 K 6000 K 2000 K Color Rendering Index 22 65 75 Rated Lamps Lumens, Initial 16000 11700 n/a Downward Luminaire Efficiency 70% 81% n/a Downward Luminaire Lumens 11200 9477 10200 Luminaire Efficacy 61 Im/W 46 Im/W 67 Im/W Comparison of Energy Consumption Durability LED Lights doesn't collect and retain dirt or water on the top side LED Lights have the life of more than 5 years so its reliable for normal use Color The most efficient white LEDS at this time emit light of 4500K to 6500K correlated color temperature -LED 6100OK MH - 3000K 0.5 HPS - 2000K 350 400 450 500 550 600 650 700 750 800 Wavelength (nm) Comparative spectral power distributions for HPS, MH, and LED. Colors shown along top and bottom are approximations provided for reference Life and Lumen Maintenance Some outdoor luminaires are designed for much longer useful lives of 100,000 to 150,000 hours 100% 90% 80% 70% 60% 50% PS MH 40% СМН 30% HPS LED example 1 LED example 2 20% 10% 0% 0 2 4 6 8 10 12 14 16 18 20 24 30 36 42 50 Operating hours (000s) Typical lumen maintenance curves for HID sources, and estimated curves for LED Use outdoor LED lights to save energy & money Source www.energy.gov Designed & Issed in PublicInteret By CUSTOM LIGHTING Piktochart i make information beautiful Relative lumens Relative (out of 1)