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CS105 Fiches technique(PDF) 1 Page - Lumileds Lighting Company |
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CS105 Fiches technique(HTML) 1 Page - Lumileds Lighting Company |
1 / 3 page CASE STUDY CS105 LED Streetlights Suit Huizhou Case Study ©2015 Lumileds Holding B.V. All rights reserved. Challenge Huizhou city is located in southern China, in the central Guangdong province and close to Hong Kong. This is home to the latest retrofit of 150-400W high pressure sodium (HPS) streetlights to energy-efficient luminaires. The goal of the project was to upgrade 20,000 existing streetlights in a 1:1 fashion to Huizhou ForYou Optoelectronics luminaires with LUXEON T LEDs. High luminaire reliability, high energy efficiency and low net system cost were the key requirements for this project. In addition, because the roadways feature HPS lamps with varying pole heights (5–14m), different luminaire and secondary optical designs were needed to meet the various light distribution requirements. Solution HPS lamps that draw 150W, 250W, 400W and 550W were replaced with four models of Huizhou ForYou Optoelectronics IP68 LED luminaires. The different roadway conditions called for both 3000K and 4000K color temperature and a minimum color rendering index of 70. The four luminaires used were the T3B-2 IP68 LED streetlight (68W), the T3B-2 IP68 LED streetlight (105W), the T3A-5 IP68 LED streetlight (170W) and the T11A-7 IP68 LED streetlight (238W), which deliver an initial luminous flux of 6460 lumens, 9975 lumens, 16150 lumens and 22610 lumens at 3000K CCT and 70CRI, respectively. All models feature tool-free onsite maintenance, and a honeycomb briquette design for effective heat dissipation from the LEDs. Summary Huizhou city is replacing 20,000 HPS streetlights with LED luminaires that deliver the highest efficacy and reliability at a competitive price. Challenge Provide an energy efficient, flexible solution for streetlights throughout Huizhou city, where pole heights vary from 5–14 meters and flux requirements vary from 6,000– 22,000 lumens. Solution Install four LED luminaires that deliver 6,460, 9,975, 16,150 and 22,610 lumens initial flux and efficacy exceeding 95 lm/W at 3000K and 70CRI — using LUXEON T emitters. Results & Benefits Huizhou ForYou LED luminaires feature an expected lifetime of 10 years (L70 of 60,000 hrs), leading to less interruption along busy roadways to replace streetlamps, 60% less energy consumption and 60% less CO 2 emissions. LED Streetlights Suit Huizhou Four types of luminaires from Huizhou ForYou Optoelectronics Technology Co., Ltd. utilize a modular design to meet the high lumen output and efficacy requirements for pole heights ranging from 5 to 14 meters (16 to 50 feet). The luminaires incorporate LUXEON T LEDs from Lumileds, the workhorse emitters for highest efficacy in directional, high flux applications. |
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