65. LED DEVICE PERFORMANCE PROJECTIONS US DOE SSL R&D MYPP, March 2008, table 4-2. Metric 2007 2010 2012 2015 Efficacy-Lab (lm/W) 120 160 176 200 Efficacy-Commercial Cool White (lm/W) 84 147 164 188 Efficacy-Commercial Warm White (lm/W) 59 122 139 163 OEM Lamp Price-Product ($/klm) 25 10 5 2
66. LED LUMINAIRE PERFORMANCE PROJECTIONS US DOE SSL Multi-Year Program Plan, March 2008, table 4-11. Metric 2007 2010 2012 2015 Device Efficacy-Commercial Cool White (lm/W, 25 degrees C) 84 147 164 188 Efficacy-Commercial Warm White (lm/W) 59 122 139 163 Thermal Efficiency 85% 89% 91% 95% Efficiency of Driver 85% 89% 91% 95% Efficiency of Fixture 77% 84% 88% 95% Resultant luminaire efficiency 56% 66% 73% 86% Luminaire Efficacy-Commercial Cool White (lm/W) 47 97 121 161 Luminaire Efficacy-Commercial Warm White (lm/W) 33 80 101 140
67. Round 7 Bollards Side-by-Side Comparison Same Model Similar Distribution Type III or House-Side Shield Source: Department of Energy
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70. courtesy of Beta Lighting 100 Watt HPS 70 Watt HPS 60 LED Type 3 (350 mA) 30 LED Type 2 (525 mA) Incumbent Technology - HPS Trial Technology - LED Graphics above show a representation of the uniformity of the illumination provided by each of the technologies
87. courtesy of Glenn Gara & 1st Source Lighting TYPICAL FLUORESCENT CONSTRUCTION & OPERATION Phosphor Visible Light Hot Cathode Electron Mercury Atom Ultraviolet Radiation Glass Tube Base Argon
88. courtesy of Glenn Gara & 1st Source Lighting ICETRON OPERATING PRINCIPLE Ballast The system consists of an inductively coupled fluorescent lamp and a high frequency electronic ballast. The system uses magnetic-induction technology instead of an electrode at each end of the fluorescent tube to power the discharge. Removal of the electrodes eliminates one of the major life-limiting components of a fluorescent lamp.
89. courtesy of Glenn Gara & 1st Source Lighting ICETRON ® QUICKTRONIC ® SYSTEMS The ICETRON electrodeless fluorescent lamp is excited by a radio frequency (RF) magnetic field. The discharge current path forms a closed loop. The electric field that generates the discharge is initiated and maintained by an RF magnetic field concentrated within the ferromagnetic ring cores. In essence, the ICETRON lamp is an electrical transformer with a closed loop discharge serving as a one-turn secondary winding coupled to ferromagnetic cores whose primary windings are excited by an electronic RF power converter (the ballast). The RF power is evenly distributed along the discharge path. This allows a low profile geometry that avoids excessive thermal stress near the excitation area that can be typical of RF lamps with internal RF drives.
A contributor to junction temperature is the ambient in which the luminaires are operated. This map shows the average night time temperatures across the United States using data from the national weather service. You should note that the average temperatures at night are 15⁰ C or lower across all but 3 states.
A contributor to junction temperature is the ambient in which the luminaires are operated. This map shows the average night time temperatures across the United States using data from the national weather service. You should note that the average temperatures at night are 15⁰ C or lower across all but 3 states.
House-side shield approximates Type III distribution for MH, but not successfully for CFL. Even without house-side shield, SSL beats MH and CFL in efficacy. SSL should be capable of much much better…other outdoor SSL luminaires at 50-70 lm/W.
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