Mean Well HLG-100H-42A Power Supply 100W 42V - Adjustable

Description

Features

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

High efficiency up to 93.5%

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

Class 2 power unit / Pass LPS

Output current adjustable through output cable or internal potentiometer

Cooling by free air convection

Suitable for dry, damp and wet location

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) 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 100W/120W)

Optional CQC models available (A/Blank type)

7 years warranty

General Specification

AC input voltage range	90~305VAC ; 127~431VDC
AC inrush current (max.)	Cold start, 60A at 230VAC
DC adjustment range	±10% rated output voltage (A-Type only)
Current adjustment range	60%~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, 50ms, 16ms 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 approved, ENEC EN61347-1, Design refer to UL60950-1, EN60950-1
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)
Dimension (LxWxH) (mm)	220x 68x 38.8

Specifications

Brand

Mean Well
Series

HLG Series
Power Rating

100 Watt
Output Voltage

42 Volt
Rated Current

2.28 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~80°C
Warranty

7 Year
Length

8.66 in
Width

2.68 in
Height

1.53 in
Weight

2.47 lb

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Frequently Asked Questions

Can I use the HLG-100H-42A for outdoor 42V LED flood lighting with adjustable output?

The HLG-100H-42A outputs 42V at up to 2.28A (100W) with a built-in potentiometer for output adjustment. However, it carries an IP65 water-resistant rating rather than IP67, so it should be placed in a sheltered enclosure or covered mounting location rather than fully exposed to rain or submersion.

Is the HLG-100H-42A suitable for fine-tuning 42V LED panel arrays in a commercial space?

Yes. The adjustable output lets you dial in the exact voltage and current within the 21-42V constant-current range to match your LED panels' optimal operating point. At 100W total capacity, it can drive small to moderate commercial LED panel setups where precise output trimming matters.

Can I power 42V LED grow lights with the HLG-100H-42A?

It can drive 42V horticultural LED modules up to 100W total. The adjustable output is useful for tuning light intensity to match different growth stages. Since grow environments often involve humidity, ensure the driver is kept in a ventilated, splash-protected location consistent with its IP65 rating.

How many meters of 42V LED strip can the HLG-100H-42A handle?

The HLG-100H-42A provides up to 100W at 42V. Divide 100W by your strip's rated wattage per meter to find the maximum run. For example, a strip rated at 12W/m allows approximately 8.3 meters (100W / 12W per meter). Always check your strip's rated power per meter and stay within the 100W limit.

Is the HLG-100H-42A weatherproof enough for a covered parking structure?

The IP65 rating protects against dust ingress and low-pressure water jets from any direction, which is generally adequate for covered or semi-enclosed parking structures. For locations where standing water or direct submersion is a risk, consider the IP67-rated HLG-100H-42 or HLG-100H-42B instead.

What does the 'A' suffix mean on the HLG-100H-42A compared to the base model?

The 'A' suffix indicates the unit includes a built-in potentiometer for adjusting output voltage and current. The base HLG-100H-42 has fixed output. The A variant is also rated IP65 water-resistant rather than the base model's IP67 waterproof. Both deliver the same 100W, 42V, 2.28A at default settings.

Model	Power	Voltage	Current	IP Rating	Price
Mean Well HLG-100H-24B Power Supply 100W 24V - Dimmable	100W	24V	4A	IP67	$46.86	View
Mean Well HLG-100H-24 Power Supply 100W 24V	100W	24V	4A	IP67	$52.53	View
Mean Well HLG-100H-24A Power Supply 100W 24V - Adjustable	100W	24V	4A	IP65	$49.00	View