PV panels with higher conversion rates are used in the latest designs. LED bulbs and intelligent controls enhance performance.

TOP TRENDS

• More efficient PV panels: China suppliers are adopting solar modules with conversion rates of at least 17 percent, enabling these to gather and produce energy even in inclement weather. To ensure efficient operation, PV cells are encased in an anodized aluminum frame with toughened low-iron tempered glass, while junction boxes are sealed for water resistance.
• LED light source: LEDs are the main source of illumination since these are more energy-efficient than incandescent bulbs and CFLs. The latest streetlights adopt diode-fitted lighting modules with a life span exceeding 50,000hr.
• Light sensors: Many manufacturers are combining light sensors and time controls for greater efficiency and user convenience. Models with both systems are priced 10 to 15 percent higher than units employing only time controls.
• Hybrid designs: Several releases are fitted with vertical wind turbines to ensure continued operation regardless of the weather.

Product gallery Qingdao AST Solar Technology Co. Ltd Model: AS028-80W Description: 80W polycrystalline silicon panel; 35 15W LEDs; 12V 65Ah maintenance-free gel battery

Shanxi Guangyu LED Lighting Co. Ltd Model: GY7235LD Description: Mono- or polycrystalline silicon panel; 80 to 140 lm/W LED efficiency; 10 to 40W

Shenzhen Shide Lai Technology Co. Ltd Model: SDLWSH-001 Description: Two 60W monocrystalline silicon panels; 300W turbine; 80W LED light fixture; 8m pole

Sky Resources Solar Technology Co. Ltd Model: YZY-LL018 Description: Mono- or polycrystalline silicon panel; LED light fixture; 30 to 55W; CE, CCC, SONCAP

Yangzhou Bright Solar Lighting Co. Ltd Model: 6M-S3 Description: 120W solar panel; 30W LED light fixture; 12V 120Ah maintenance-free gel battery

Zhejiang Dayi Electronics Co. Ltd Model: DY-SS-W050 Description: 180Wp polycrystalline silicon panel; 50W 12V LED light fixture; 12V 180Ah gel battery

Note: This article "Upgraded components boost efficiency of solar streetlights" was originally published by Global Sources, a leading business-to-business media company and a primary facilitator of trade with China manufacturers and India suppliers, providing essential sourcing information to volume buyers through our e-magazines, trade shows and industry research.

All price quotes in this report are in US dollars unless otherwise specified. FOB prices were provided by the companies interviewed only as reference prices at the time of interview and may have changed.

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