LED drivers for outdoor applications have 30 to 300W power

Global SourcesUpdated on 2023/12/01

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Constant-current types form the bulk of supply in China.

IP67 and IP68-rated LED drivers from China companies have 30 to 300W power, with typical power factor exceeding 0.9. High-end models feature up to 0.99.

Units come in constant-current and -voltage configurations. The former leads output at present, being the popular driving method for diodes. Makers forecast hybrid variants that combine these technologies will dominate supply in the future.

Xiamen Evada Electronics Co. Ltd offers the first two types, with constant-current models having an 80 percent share. Boke LED Drivers Co. Ltd focuses on constant-current kinds.

China makers also target uses in LED landscape, industrial and traffic lights.

The main materials and components include power management ICs, transformers, rectifiers, filters, thyristors, PCBs, plastic and metal. Manufacturers usually obtain the first from Fairchild, TI, National Semiconductor, On Semiconductor, STMicroelectronics and Infineon. For passive and discrete components, they turn to local sources, adopting versions from Japan and the US on request only.

Intense competition will keep prices in a downward trend despite rising labor costs. Makers estimate 5 to 10 percent lower quotes in coming months.

Here is a selection of LED drivers from China:

LED driver features industrial-grade lightning protection

Boke LED Drivers Co. Ltd's model BK-PHL060-1500 is an IP67-rated 60W LED driver with 100 to 277VAC input voltage and 24 to 36V, 1.65A output. It incorporates an industrial-grade lightning protection circuit that can withstand 4kV differential and 6kV common mode voltages.

The aluminum-housed unit uses components from NXP, STMicroelectronics, Rubycon and Nippon Chemi-con. It is 150x69x39mm and 1.5kg. The product meets CE, TÜV and UL. It is priced at $20.

The maker accepts a minimum order of 100 units for delivery within 10 days.

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LED driver lasts more than 25,000 hours

Shenzhen Ledfriend Optoelectronics Co. Ltd's model LF-GOE150YD two-stage LED driver for street and floodlights has 100 to 277VAC input voltage and 135 to 200V, 900mA, maximum 150W output. It can support 50 to 500 diodes in series.

The isolated IP67-rated unit has 0.95 power factor and 90 percent efficiency at 230VAC input voltage and full-load operation. It can handle 4kV surge, and has built-in overheating, and open- and short-circuit protection. The life span exceeds 25,000 hours under 40 C ambient temperature.

The model in plastic housing carries CE and UL approval. It is quoted at $42.50. The minimum order is 10 units, and the delivery lead time is 30 days.

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LED driver has ≥91 percent efficiency

Xiamen Evada Electronics Co. Ltd's IP67-rated LED driver, model CUF-150-230-FA1, has ≥91 percent efficiency and ≥0.98 power factor. Its input voltage is 90 to 264VAC and output is 50 to 65VDC, 2.3A, 150W.

The 225x69x39.2mm unit in aluminum housing boasts overcurrent, -voltage, -heating, and open- and short-circuit protection. It complies with CB and CE, and has a 3-year warranty.

The price is $32. The minimum order is 100 units, and delivery is within 7 days.

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LED driver with 88 percent typical efficiency

This model KRE-4800312W 150W constant-voltage LED driver from Zhongshan Kingrong Electronics Co. Ltd features a typical efficiency of 88 percent below 70 C operating and 40 C ambient temperatures. It has 100V to 240VAC, 50/60Hz, 0.23A input and 48V, 3125mA output. The voltage tolerance is ±4 percent.

The IP67-rated unit comes with overcurrent, -voltage, -heating and short-circuit protection. It is $24.60 and requires a minimum order of 1,000 units. Delivery takes 15 days.

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