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Mean Well LDH-45B-350W DC/DC LED Driver CC 350mA - Step-up
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Mean Well LDH-45B-350W DC/DC LED Driver CC 350mA - Step-up
Description
Description
The LDH-45B is a Mean Well power converter (input range: 9~18VDC).
Key Features
- ✓ Input voltage range: 9~18VDC
- ✓ Protections: Short circuit / Over voltage
- ✓ Remote ON/OFF control
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesLDH Series
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Power Rating44.1 Watt
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Output Voltage126 Volt
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Rated Current0.35 Ampere
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Input Voltage18V~32V
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No of Output1
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Dimming ControlPWM
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Standards MetCE,EAC
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Operation ModeConstant Current
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Operating Temperature-40°C~70°C
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Warranty3 Year
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Length2.95 in
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Width2.09 in
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Height0.89 in
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Weight0.04 lb
File Downloads
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Payment & Security
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Frequently Asked Questions
Can I use the LDH-45B-350W for a 350mA LED downlight array?
Yes, this driver is intended for constant current LED loads at 350mA, including downlight arrays that match that drive current. The LED load must operate within the 21-126V constant current range and remain within the 44.1W power rating.
Will this work for constant current LED signage lighting?
It can work for signage modules if the modules are designed for 350mA constant current operation. Since this unit is a constant current driver rather than a constant voltage supply, the total LED forward voltage needs to land inside the 21-126V CC range.
Is the LDH-45B-350W suitable for a small LED array with a wide forward-voltage range?
This model is useful for 350mA LED arrays because it supports a broad 21-126V constant current window. That wide range gives more flexibility across different array forward voltages, provided the total load stays within 44.1W.
Can this driver be used in outdoor or damp locations?
It has an IP67 waterproof rating, so it is designed for harsher environments than open-frame indoor-only drivers. The operating temperature range of -40°C to +70°C also supports use in demanding temperature conditions.
How should I check compatibility with my LED load?
Your LEDs must be a 350mA constant current load with a total forward voltage that falls within the 21-126V CC range. The number of LEDs will depend on each LED's forward voltage, so there is no single fixed LED count for this driver.
How does the LDH-45B-350W compare with the other 350mA LDH-45B versions?
LDH-45B-350 and LDH-45B-350W are both rated at 350mA, 21-126V, and 44.1W, while LDH-45B-350DA and LDH-45B-350WDA are rated at 350mA, 36-126V, and 44.1W. The main factual differences in this subgroup are the CC voltage range and the version suffix, not the nominal power.
