Mean Well HLG-600H-42AB Power Supply - 600W 42V

Q: Can I use the HLG-600H-42AB to power high-wattage 42V LED strip installations?

Yes. The HLG-600H-42AB delivers 600W at 42V and 14.3A, making it well suited for long runs of 42V LED strip. For example, if your strip draws 20W per meter, you could power up to 30 meters (600W / 20W per meter = 30m). Always check your strip's rated power per meter and keep total load at or below 600W.

Q: Is the HLG-600H-42AB a good choice for large-format 42V LED signage?

Yes. With 600W of output at 42V, it can drive substantial 42V LED sign arrays such as large channel-letter sets or illuminated cabinet signs. Its wide 90-305VAC input accommodates most commercial mains supplies worldwide, and the built-in dimming input lets you adjust sign brightness for day/night operation.

Q: Can I dim the HLG-600H-42AB and also fine-tune its output voltage?

Yes. The AB suffix means it has both a built-in potentiometer for adjusting output voltage and current, and a dimming interface that accepts 1-10V, PWM, or resistance signals. This makes it useful in applications where you need precise voltage matching and external brightness control from a building management system or timer.

Q: Is the HLG-600H-42AB suitable for powering 42V LED grow lights in a greenhouse?

It can work for greenhouse grow-light setups running on 42V, as long as the total LED load stays within 600W. However, its IP65 rating means it resists water jets and dust but is not rated for submersion. Mount it in a sheltered location away from direct irrigation spray for best results.

Q: How many meters of 42V LED strip can the HLG-600H-42AB handle?

Divide 600W by your strip's power consumption per meter. For example, a strip rated at 15W/m would allow up to 40 meters (600W / 15W per meter = 40m). A strip rated at 25W/m would allow 24 meters. Always check your strip's rated power per meter and keep total load at or below 600W.

Q: Can I install the HLG-600H-42AB in a covered outdoor location?

Yes. Its IP65 water-resistant rating protects against low-pressure water jets and dust, making it suitable for covered patios, canopies, parking garages, and similar sheltered outdoor environments. For fully exposed outdoor installations where submersion or heavy rain is possible, consider the IP67-rated HLG-600H-42B instead.

Q: What are the differences between the HLG-600H-42, 42A, 42AB, and 42B?

All four share the same 600W / 42V / 14.3A core specs. The base HLG-600H-42 has fixed output and IP67 waterproof rating. The -42A adds output voltage/current adjustment via potentiometer (IP65). The -42AB adds both adjustment and 1-10V/PWM dimming input (IP65). The -42B provides dimming input only and retains IP67 waterproof rating.

Description

Features

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

Protections: Short circuit / Over current / Over voltage / Over temp.

Built-in active PFC function

High efficiency up to 96%

IP67 / IP65 design for indoor or outdoor installations (except for HLG-320H C-Type)

Output current adjustable through output cable or internal potentiometer

Cooling by free air convection

Suitable for LED lighting and street lighting applications

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

No load power consumption <0.5W at remote off (HLG-600H)

Type HL LED Driver for use in Class I, Division 2 hazardous location luminaires

LED indicator for power on (HLG-600H A-Type only)

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 (HLG-320H only)
Blank-Type: IP67 rated. Cable for I/O connection (HLG-320H only)
D-Type(option): IP67 rated. Timer dimming function, contact MEAN WELL for details (HLG-320H only)

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	-15%~+5% rated output voltage (A-Type only)
Over voltage protection	110%~140% rated output voltage
Over current protection	95%~108% constant current limiting, auto- recovery
Current adjustment range	50%~100% rated output current adjustable by internal potentiometer (for A-Type & HLG-320H C-Type)
Setup, rise, hold up time	500ms, 80ms, 15ms at full load and 230VAC
Withstand voltage	I/P-O/P: 3.75kVAC, I/P-FG: 2kVAC, O/P-FG: 1.5kVAC
Working temperature	-40~+70ºC (refer to output derating curve)
Safety standards	UL60950-1, UL8750, ENEC EN61347-1/2-13, EN62384 approved
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-Type: SJTW 14AWGx2C (30cm)+ SJTW 14AWGx2C (30cm) + UL2517 22AWGx3C(30cm) B-Type: SJTW 14AWGx2C (30cm)+ SJTW 14AWGx2C (30cm) + UL2517 22AWGx3C(30cm)+ UL2517 18AWGx2C (30cm)
Dimension (LxWxH) (mm)	280x 144x 48.5

Specifications

Brand

Mean Well
Series

HLG Series
Power Rating

600 Watt
Output Voltage

42 Volt
Rated Current

14.3 Ampere
Input Voltage

90V~305V
No of Output

1
Dimming Control

10V PWM,1-10V,Built-in Potentiometer,Resistance
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

11.02 in
Width

5.67 in
Height

1.91 in
Weight

8.6 lb

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Frequently Asked Questions

Can I use the HLG-600H-42AB to power high-wattage 42V LED strip installations?

Yes. The HLG-600H-42AB delivers 600W at 42V and 14.3A, making it well suited for long runs of 42V LED strip. For example, if your strip draws 20W per meter, you could power up to 30 meters (600W / 20W per meter = 30m). Always check your strip's rated power per meter and keep total load at or below 600W.

Is the HLG-600H-42AB a good choice for large-format 42V LED signage?

Yes. With 600W of output at 42V, it can drive substantial 42V LED sign arrays such as large channel-letter sets or illuminated cabinet signs. Its wide 90-305VAC input accommodates most commercial mains supplies worldwide, and the built-in dimming input lets you adjust sign brightness for day/night operation.

Can I dim the HLG-600H-42AB and also fine-tune its output voltage?

Yes. The AB suffix means it has both a built-in potentiometer for adjusting output voltage and current, and a dimming interface that accepts 1-10V, PWM, or resistance signals. This makes it useful in applications where you need precise voltage matching and external brightness control from a building management system or timer.

Is the HLG-600H-42AB suitable for powering 42V LED grow lights in a greenhouse?

It can work for greenhouse grow-light setups running on 42V, as long as the total LED load stays within 600W. However, its IP65 rating means it resists water jets and dust but is not rated for submersion. Mount it in a sheltered location away from direct irrigation spray for best results.

How many meters of 42V LED strip can the HLG-600H-42AB handle?

Divide 600W by your strip's power consumption per meter. For example, a strip rated at 15W/m would allow up to 40 meters (600W / 15W per meter = 40m). A strip rated at 25W/m would allow 24 meters. Always check your strip's rated power per meter and keep total load at or below 600W.

Can I install the HLG-600H-42AB in a covered outdoor location?

Yes. Its IP65 water-resistant rating protects against low-pressure water jets and dust, making it suitable for covered patios, canopies, parking garages, and similar sheltered outdoor environments. For fully exposed outdoor installations where submersion or heavy rain is possible, consider the IP67-rated HLG-600H-42B instead.

What are the differences between the HLG-600H-42, 42A, 42AB, and 42B?