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Mean Well LDH-45A-500W DC/DC LED Driver CC 500mA - Step-up
The LDH-45A 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
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BrandMean Well
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SeriesLDH Series
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Power Rating43 Watt
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Output Voltage86 Volt
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Rated Current0.5 Ampere
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Input Voltage9V~18V
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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
::specification::
Frequently Asked Questions
Can I use the LDH-45A-500W for 500mA architectural LED downlights?
Yes, when the downlight is a constant current load rated for 500mA and the total LED forward voltage is within 12-86V. This driver provides up to 43W and up to 86V output voltage, so it suits higher-voltage constant current downlight assemblies in that range. It is not intended for fixed-voltage LED products.
Is the LDH-45A-500W appropriate for waterproof signage lighting or small LED arrays?
It can be used for constant current signage modules or compact LED arrays that require 500mA and operate within the 12-86V constant current range. The IP67 waterproof rating supports wet or dusty installations, and the operating range is -40°C to +70°C. The total LED load must remain within 43W.
Can this step-up driver handle a constant current LED string that needs a wide output range?
Yes, the LDH-45A-500W regulates constant current at 500mA across 12-86V and can deliver up to 86V output voltage. That makes it useful for small LED arrays or downlights with a wider string voltage requirement. The load must still stay within the 43W power rating.
How do I know whether my LED string is the right size for the LDH-45A-500W?
The LED string must be designed for constant current operation at 500mA, and the total forward voltage must fit within 12-86V. The number of LEDs depends on each LED's forward voltage, so there is no universal LED count for this model. This driver can supply up to 43W.
What separates the LDH-45A-500W from the other 500mA LDH-45A versions?
LDH-45A-500 and LDH-45A-500W are both 500mA, 12-86V, and 43W models, while LDH-45A-500DA and LDH-45A-500WDA are 500mA, 24-86V, and 43W models. The W versions are wire style and the non-W versions are pin style. All are constant current step-up drivers with a maximum output voltage of 86V.
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