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Mean Well LDH-45B-1050WDA DC/DC LED Driver CC 1050mA - Step-up
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Mean Well LDH-45B-1050WDA DC/DC LED Driver CC 1050mA - 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 Rating45.15 Watt
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Output Voltage43 Volt
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Rated Current1.05 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
Payment methods
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Frequently Asked Questions
Can I use the LDH-45B-1050WDA for a 1050mA LED downlight with a 36-43V LED string?
Yes, if the downlight is designed for constant current operation at 1050mA and the total forward voltage falls within 36-43V. This model is a constant current driver, not a constant voltage power supply. Its output power is rated at 45.15W.
Is this driver suitable for 1050mA signage modules with a higher forward-voltage requirement?
It can be suitable when the signage module needs 1050mA constant current and operates within the 36-43V CC range. That makes it more specific to higher-voltage LED loads than the wider 21-43V versions. It should not be used for constant voltage signage modules.
Can the LDH-45B-1050WDA drive a small LED array that falls in the upper part of this series voltage range?
Yes, this model is intended for constant current LED arrays at 1050mA where the combined LED forward voltage is between 36V and 43V. Because its constant current window starts at 36V, lower-voltage arrays are outside its specified range. The number of LEDs depends on the forward voltage of each LED.
Will this driver hold up in wet or cold outdoor conditions?
The IP67 waterproof rating supports use where water and dust protection are required. Its operating temperature range is -40°C to +70°C, so it is designed for both low and high ambient temperatures within that span. The rest of the lighting system should be rated for the same conditions.
How do I determine if my LED load is compatible with the LDH-45B-1050WDA?
The load must require 1050mA constant current and operate within the driver's 36-43V CC output range. The number of LEDs depends on each LED's forward voltage, so compatibility is based on total forward voltage rather than a fixed LED count. If the load is constant voltage, this driver is not the correct choice.
What separates the LDH-45B-1050WDA from the other 1050mA LDH-45B models?
The LDH-45B-1050WDA is a 45.15W, 1050mA wire-style model with a 36-43V CC range. The LDH-45B-1050DA has the same 36-43V range in pin style, while the LDH-45B-1050 and LDH-45B-1050W use a wider 21-43V CC range at the same 45.15W and 1050mA ratings. All four have a 43V output rating.
