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Mean Well LDH-45B-350DA DC/DC LED Driver CC 350mA - Step-up
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Mean Well LDH-45B-350DA 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 ControlDALI
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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
File Downloads
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Payment & Security
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Frequently Asked Questions
Can I use the LDH-45B-350DA for LED downlights that need a 350mA constant current driver?
Yes, this model is built for constant current LED loads at 350mA, which is a common requirement for LED downlights. The connected load needs to operate within the 36-126V constant current output range, and the total load must stay within the 44.1W rating.
Is this driver suitable for constant current LED signage modules?
It can be a fit for signage modules when the module string is designed for 350mA constant current operation. This is not a constant voltage driver, so the LED load must match the 36-126V CC range rather than a fixed voltage output.
Can the LDH-45B-350DA run a small high-voltage LED array?
Yes, it is intended for constant current LED arrays that need 350mA and fall within the 36-126V output range. Its step-up design and 126V maximum output make it more suitable for higher-voltage LED strings than lower-voltage-only CC drivers.
Is this a good choice for sealed or exposed lighting locations?
This driver carries an IP67 waterproof rating, so it is better suited to wet or dusty environments than non-sealed drivers. It is also rated for operation from -40°C to +70°C, which supports use across a wide temperature range.
How do I know whether my LED load is compatible with this 350mA driver?
The key compatibility check is that your LED load must require 350mA constant current and fall within the 36-126V CC output range. The number of LEDs depends on each LED's forward voltage, so compatibility is based on the total forward voltage of the array rather than a fixed LED count.
What is the difference between the LDH-45B-350 family versions?
In the LDH-45B-350 group, LDH-45B-350 and LDH-45B-350W are both 350mA, 21-126V, 44.1W models, while LDH-45B-350DA and LDH-45B-350WDA are 350mA, 36-126V, 44.1W models. The spec split is the CC range and the physical style noted in the model suffix, while the output current and power stay the same within the group.
