The LF-GSPxxxYB series are designed for commercial emergency LED lighting application. And they have a very wide input voltage range AC 100-277 V.
And the customer can use battery of input voltage 11 V – 22.5 V to match with this emergency LED driver. And the output current under emergency condition can be set as 1% -100% of the rated output current by Ledfriend engineers. And the driver also complies with two wires AC input connection and three wires AC input connection.
Typical specs are AC 100-277 V input, DC 30-40 V output and Iout = 500 mA. Efficiency is 78% for 20 W full load and the power factor meet 0.92 when input voltage is AC 230 V.
The driver is in aluminum housing and size is L x W x H = 180*23*15 mm. Its housing is designed for application of Tri-proof LED lights, LED tube lights and LED gird lights, etc.
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About Shenzhen Ledfriend (Lifud):
Shenzhen Ledfriend is a professional manufacturer and designer of LED drivers and power supplies located in Shenzhen of China. With 1,000 staff, among which there are 100 engineers and technicians. The factories cover an area of 15,000 square meters and have an annual production capacity of 20 million pieces. And Ledfriend Sichuan production base has an overall planning floorage of nearly 130,000 square meters, among which 33,000 square meters are under construction now.
With its own independent R&D centers, ISO9001:2008 certified factories and customer-oriented sales and marketing team, Ledfriend now has been certified as a national high-tech enterprise. And it’s also a member of Shenzhen LED Industry Association and Shenzhen Illuminating Engineering Society.
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