Mean Well HLG-320H-12A Power Supply 264W 12V - Adjustable

Description

Features

Universal AC input (up to 305VAC) / Full range

High efficiency up to 95%

Built-in active PFC function, PF> 0.9 for 60% of load or higher

Protections: Short circuit / Over current / Over voltage / Over temperature

IP67 / IP65 design for indoor or outdoor installations

Cooling by free air convection

Output current adjustable

Suitable for LED lighting and street lighting applications

Meet 4kV surge immunity level (IEC61000-4-5)

Multiple models for choice: A-Type: IP65 rated. Output voltage and constant current level can be adjusted through internal potentiometer B-Type: IP67 rated and built-in 3 in 1 dimming function (1~10VDC, PWM signal, or resistance) C-Type: Terminal block for I/O connection Blank-Type: IP67 rated. Cable for I/O connection D-Type(option): IP67 rated. Timer dimming function, contact MEAN WELL for details (safety pending for 150~240W)

7 years warranty

General Specification

AC input voltage range	90~305VAC ; 127~431VDC
AC inrush current (max.)	Cold start, 70A at 230VAC
DC adjustment range	±6% rated output voltage
Current adjustment range	50%~100%
Over current protection	95%~108% constant current limiting, auto-recovery
Over voltage protection	110%~140% rated output voltage
Setup, rise, hold up time	2500ms, 80ms, 15ms at full load and 230VAC
Withstand voltage	I/P-O/P: 3.75kVAC, I/P-FG: 2kVAC, O/P-FG: 0.5kVAC
Working temperature	-40~+70ºC (refer to output derating curve)
Safety standards	UL8750, TUV EN61347-1, EN61347-2-13, PSE J61347-1, J61347-2-13 (except for C-Type) approved; UL1012, UL60950-1
EMC standards	EN55015, EN55022 class B, EN61000-3-2 class C, EN61000-3-3, EN61000-4-2,3,4,5,6,8,11, EN61547
Connection Input	UL rated, SJTW 18AWGx3C (30cm);
Connection Output	A/D/Blank-Type: SJTW 14AWGx2C (30cm) ; B-Type: SJTW 14AWGx2C (30cm)+SJTW 18AWGx2C (30cm); C-Type: Terminal block
Dimension (LxWxH) (mm)	252x 90x 43.8

Specifications

Brand

Mean Well
Series

HLG Series
Power Rating

264 Watt
Output Voltage

12 Volt
Rated Current

22 Ampere
Input Voltage

90V~305V
No of Output

1
Dimming Control

Built-in Potentiometer
Standards Met

CB,CCC,CE,EAC,PSE,RCM,TUV,UL
Operation Mode

Constant Current,Constant Voltage
Operating Temperature

-40°C~90°C
Warranty

7 Year
Length

9.92 in
Width

3.54 in
Height

1.72 in
Weight

4.14 lb

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Frequently Asked Questions

Can I use the HLG-320H-12A to adjust output voltage for 12V LED strip runs that experience voltage drop?

Yes. The HLG-320H-12A includes a built-in potentiometer that lets you increase the output voltage slightly above nominal 12V to compensate for voltage drop over long LED strip runs. This helps maintain uniform brightness at the far end of the strip. The CC range of 6-12V also accommodates varied LED configurations.

Is the HLG-320H-12A suitable for powering large 12V LED signage installations with adjustable brightness?

The HLG-320H-12A delivers 264W at 12V with 22A output and a potentiometer for current and voltage adjustment. However, it does not have a dimming input — the potentiometer sets a fixed output level. If you need remote or automated brightness control, consider the HLG-320H-12AB or HLG-320H-12B instead.

Can the HLG-320H-12A drive 12V LED modules for retail display lighting?

Yes. At 264W and 12V, the HLG-320H-12A can power extensive 12V LED module arrays in retail displays, showcases, and backlit graphics. The adjustable output lets you fine-tune brightness to the display designer's specification. Its compact dimensions of 252.0 × 90.0 × 43.8 mm allow concealed mounting behind display walls.

How many watts of 12V LED fixtures can I connect to the HLG-320H-12A?

The HLG-320H-12A supplies up to 264W at 12V (22A). Your total connected 12V LED load must stay at or below 264W. For example, if you have ten 12V LED modules at 24W each, the total is 240W, which is within the driver's capacity. Always verify each module's rated wattage before connecting.

Is the HLG-320H-12A rated for damp or semi-outdoor locations?

Yes. The IP65 rating protects against dust ingress and low-pressure water jets from any direction. It is suitable for damp locations, ventilated outdoor cabinets, covered canopies, and sign boxes where direct rain is blocked. For fully exposed outdoor installations, consider the IP67-rated HLG-320H-12 or HLG-320H-12B.

What are the differences between the HLG-320H-12, 12A, 12AB, and 12B models?

All four share 264W / 12V / 22A core specs. The base HLG-320H-12 has fixed output and IP67 waterproof rating. The -12A (this model) adds output voltage/current adjustment via potentiometer (IP65). The -12AB adds both adjustment and 1-10V/PWM dimming input (IP65). The -12B provides dimming input only and retains IP67 waterproof rating.

Model	Power	Voltage	Current	IP Rating	Price
Mean Well HLG-320H-24 Power Supply 320W 24V	320W	24V	13.34A	IP67	$81.83	View
Mean Well HLG-320H-24B Power Supply 320W 24V- Dimmable	320W	24V	13.34A	IP67	$81.04	View
Mean Well HLG-320H-12 Power Supply 264W 12V	264W	12V	22A	IP67	$78.41	View
Mean Well HLG-320H-48B Power Supply 320W 48V- Dimmable	320W	48V	6.7A	IP67	$81.04	View
Mean Well HLG-320H-24A Power Supply 320W 24V - Adjustable	320W	24V	13.34A	IP65	$93.02	View
Mean Well HLG-320H-42A Power Supply 320W 42V - Adjustable	320W	42V	7.65A	IP65	$86.45	View
Mean Well HLG-320H-42B Power Supply 320W 42V- Dimmable	320W	42V	7.65A	IP67	$96.14	View