Environmental Impacts 1.Global Warming: Green House Gas (GHG) Reduction for quantity of 100, W HPS Fixtures 2.RoHS Compliant – lead and mercury free Data compiled using RETSCREEN Tool for Analysis - Developed by Natural Resources Canada Requires 56,900 MWh of Electrical Energy annually Assuming average 12 hr on timehttp://www.retscreen.net/ Impact of replacing 100,000 HPS fixtures with 100,000 LED Roadway Lighting Ltd. Fixture Model A100 Energy Saved annually 22,298 MWh/year GHG (CO 2 ) Reduction annually17,378 tonnes/year Barrels of Crude Oil not consumed annually36,084 Barrels/year Equivalent Number of Cars taken off the Roads3,533 cars
Comparative Isolux Distribution Pattern LRL vs. HPS Comparison Isolux Distribution Pattern LED ROADWAY LIGHT (Type II) 0.2 Lux at 140ft from Pole 30ft mtg. height LED ROADWAY LIGHT (Type II) 0.2 Lux at 140ft from Pole 30ft mtg. height
Scotopic Effect: Beware of False Claims 1. Object Recognition (Fovea): Only photopic lumens are registered. * Those using Scotopic/Photopic effects for reducing street lighting levels are compromising safety and may not meet IES specifications. 2. Spatial Brightness Perception (Peripheral Vision): Both scotopic and photopic lumens are registered. 2. Spatial Brightness Perception (Peripheral Vision): Both scotopic and photopic lumens are registered.
Our target color temperature is in the 5000K range as this is in the noon daylight range. LEDs have a much higher CCT than HPS due to the greater amount of blue light present (Bluer Light, Better Sight James R. Benya Chromaticity Diagram
Command and Control: Improved Light Efficiency January 23, 2009 LED Roadway Lighting announced a $4.2 million R&D program to deliver the following functionality: 1.Wireless Radio System: network of LED street lights 2.Centralized control, dimming, and monitoring 3.Solar Power Technology