MEAN WELL Power Supply XLG-50 Series Constant Current Mode LED Driver

Product Item : XLG-50 series
Category：LED Driver
Wattage: 50W
Input Voltage: 90 ~ 305VAC or 127 ~ 431VDC
Output Current: 1A
Output Voltage: 57V
Product description：XLG-50 series is a 50W AC/DC LED driver featuring the constant current mode output. XLG-50 operates from 90~305VAC.
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XLG-50 Series - 50W Constant Power LED Driver with Active PFC, Class 2, IP67, 0-10V Dimming

In Stock 5-Year Warranty Constant Power 50W Max IP67 Class 2 Active PFC 0-10V Dimming Type HL

				Key Performance at a Glance
			
						25W
					
						Max Power
					
						90%
					
						Peak Efficiency
					
						1000mA
					
						Default Current
					
						4
					
						Version Types
					
						IP67
					
						Outdoor Rated
					
						+90C
					
						Max Tcase

Product Overview

The MEAN WELL XLG-50 series is a 50W AC-to-DC constant-power LED driver family with IP67 protection, Class 2 power rating, and Type HL certification for Class I, Division 2 hazardous location lighting. It is designed for LED street lighting, architectural lighting, bay lighting, flood lighting, and industrial lighting.

It accepts universal 100~305VAC input (127~431VDC) and provides a constant-power 25W output with a default current of 1000mA and an adjustable current range of 0.53~2.1A via an internal potentiometer. The constant-current region is 22~54V with a maximum open-circuit voltage of 57V. With peak efficiency up to 90%, the driver uses a fanless design and operates at case temperatures from -40C to +90C under free air convection.

The metal enclosure carries an IP67 rating for both indoor and outdoor use. Four function versions are available: A (current adjustable), AB (current adjustable + 3-in-1 dimming), I-A (India version with input OVP), and I-AB (India version with dimming + input OVP). The AB-type dimming circuit is galvanically isolated from the output and supports 0~10Vdc / 10V PWM / resistor dimming down to approximately 0%. No-load power consumption is below 0.5W on A-Type and standby power below 0.5W on AB-Type.

Protection includes over-power (110-150%), short-circuit (constant current limiting), and over-temperature (hiccup mode), all with automatic recovery after fault removal. The I-Type adds input over-voltage protection at 320~370VAC. The driver complies with global lighting safety and EMC standards including UL8750 Type HL, CSA, ENEC, AS/NZS, BS EN/EN, GB/T, JIS, EAC, KC, and IS 15885 (I-Type only), and is backed by a 5-year warranty. Note: a switch must be installed between the mains and the LED driver to meet the latest ErP regulations.

Product Images

XLG-50 series LED driver dimension diagram

Technical Specifications

Output ratings for the XLG-50 series. All values measured at 230VAC, rated current, 25C unless noted.

Model	Default Current	CC Region	Open Circuit Max	Adjustment	Dimming	IP
XLG-50-A	1000mA	22 ~ 54V	57V	Current adjustable via built-in potentiometer	None	IP67
XLG-50-AB	1000mA	22 ~ 54V	57V	Current adjustable via built-in potentiometer	3-in-1 (0~10Vdc / 10V PWM / resistor)	IP67
XLG-50I-A	1000mA	22 ~ 54V	57V	Current adjustable via built-in potentiometer	None	IP67
XLG-50I-AB	1000mA	22 ~ 54V	57V	Current adjustable via built-in potentiometer	3-in-1 (0~10Vdc / 10V PWM / resistor)	IP67

Version Types

Type	IP	Output Adjustment	Dimming	Input OVP	Notes
A	IP67	0.25 ~ 1.05A via built-in potentiometer	None	No	Standard, no-load <0.5W
AB	IP67	0.25 ~ 1.05A via built-in potentiometer	3-in-1 (0~10Vdc / 10V PWM / resistor)	No	Standard, standby <0.5W
I-A	IP67	0.25 ~ 1.05A via built-in potentiometer	None	Yes (320~370VAC)	India version, no-load <0.75W
I-AB	IP67	0.25 ~ 1.05A via built-in potentiometer	3-in-1 (0~10Vdc / 10V PWM / resistor)	Yes (320~370VAC)	India version, standby <0.5W

Input & Protection (All Versions)

Input Voltage Range	100~305VAC \| 127~431VDC \| 47~63Hz
Active PFC / THD / AC Current	PF>=0.97/115V, >=0.95/230V, >=0.92/277V at full load \| THD<10% (@load>=50%/115VAC,230VAC; @load>=75%/277VAC) \| 0.57A/115V, 0.29A/230V, 0.24A/277V
Inrush / Leakage / Breaker	Cold start 50A (twidth=350us measured at 50% Ipeak) / 230VAC per NEMA 410 \| 16A breaker: 5 units (B type) / 8 units (C type) at 230VAC \| <0.75mA/277VAC
Set Up / Rise Time	500ms, 100ms / 115VAC, 230VAC
No-Load / Standby Power	A-Type: <0.5W \| I-Type: <0.75W \| AB-Type standby: <0.5W
Protection	Over-power: 110-150%, auto-recovery \| Short circuit: constant current limiting, auto-recovery \| Over temp: hiccup mode, auto-recovery \| Input OVP: 320~370VAC on I-Type only, auto-recovery; withstand 440VAC for 48h
Current Ripple / Tolerance	<5.0% @ rated current \| ±5%
Operating / Storage Temp	Tcase=-40~+90C (refer to derating curve) \| Storage -40~+80C \| Temp coefficient ±0.03%/C (0~60C)
Vibration / Humidity	10~500Hz, 5G, 12min/cycle, X/Y/Z 72min each \| 20~95% RH non-condensing
Isolation	3.75KVac I/P-O/P, 2KVac I/P-FG, 1.5KVac O/P-FG
EMC Emission / Immunity	EN55015/CISPR15, J55015, GB/T17743; Harmonic Class C (@load>=50%); EN61000-3-3 \| Immunity: EN61000-4-2 Level 3, EN61000-4-3 Level 3, EN61000-4-4 Level 3, EN61000-4-5 (4KV line-earth, 2KV line-line), EN61000-4-6 Level 3, EN61000-4-8 Level 4, EN61000-4-11, EN61547
Lifetime / MTBF / Size	>50,000 hours at Tcase<75C \| 3931.6K hrs (Telcordia SR-332) / 394.6K hrs (MIL-HDBK-217F, 25C) \| 105 x 63 x 30mm \| A-Type 0.41Kg / AB-Type 0.42Kg

Safety Standards & Certifications

Safety Standards	UL8750 (Type HL), CSA C22.2 No. 250.13-12, ENEC, AS/NZS IEC 61347.2.13, AS/NZS 61347.1, BS EN/EN61347-1, BS EN/EN61347-2-13 independent, BS EN/EN62384, GB/T19510.1, GB/T19510.213, J61347-1(H29), J61347-2-13(H29), EAC TP TC 004, KC61347-1, KC61347-2-13, IS 15885(Part 2/Sec13) (I-Type only), NOM-058-SCFI-2017 \| IP67
Withstand Voltage	I/P-O/P: 3.75KVAC \| I/P-FG: 2.0KVAC \| O/P-FG: 1.5KVAC
Insulation Resistance	I/P-O/P, I/P-FG, O/P-FG: 100M Ohms / 500VDC / 25C / 70% RH
EMC Emissions	BS EN/EN55015 (CISPR15), J55015, GB/T17743; Harmonic BS EN/EN61000-3-2 Class C (@load>=50%); BS EN/EN61000-3-3
EMC Immunity	BS EN/EN61547, BS EN/EN61000-4-2 Level 3, BS EN/EN61000-4-3 Level 3, BS EN/EN61000-4-4 Level 3, BS EN/EN61000-4-5 (4KV line-earth, 2KV line-line), BS EN/EN61000-4-6 Level 3, BS EN/EN61000-4-8 Level 4, BS EN/EN61000-4-11

Key Features

Constant Power Output -- Flexible LED Drive
XLG-50 is a 50W constant-power LED driver. Output current can be adjusted from 0.53A to 2.1A via an internal potentiometer, supporting LED strings from 22V up to 54V with a maximum open-circuit voltage of 57V.

4 Version Types -- A / AB / I-A / I-AB
A-Type provides adjustable current. AB-Type adds isolated 0~10Vdc / 10V PWM / resistor dimming. I-Type variants add input over-voltage protection for India and other markets requiring 320~370VAC OVP.

Class 2 + Type HL + IP67
Class 2 power limits simplify installation wiring. UL8750 Type HL certification supports hazardous location lighting. Sealed metal housing supports indoor and outdoor use.

Active PFC + Global Certifications
PF>=0.97 at 115V and THD<10% keep installations compliant. UL/CSA/ENEC/AS/NZS/GB/JIS/EAC/KC/NOM certifications enable worldwide deployment; IS 15885 for India on I-Type.

High Surge & Wide Temperature Range
Fanless operation from Tcase -40C to +90C. Passes 5G vibration and 4KV line-to-earth / 2KV line-to-line surge immunity for harsh outdoor and industrial environments.

5-Year Warranty + Ultra-Low Standby
Backed by a 5-year warranty. No-load/standby power is below 0.5W to meet modern ErP requirements. Compact 105 x 63 x 30mm metal housing fits tight fixtures.

Frequently Asked Questions

What is constant power mode on XLG-50?

XLG-50 maintains a constant 25W output while the output current and voltage adjust within the operating window. The default current is 1000mA and the output voltage range is 22~54V. You can adjust current from 0.53A to 2.1A via the internal potentiometer to match your LED module.

What is the difference between A-Type, AB-Type, I-A and I-AB?

A-Type is the standard adjustable-current version. AB-Type adds 0~10Vdc / 10V PWM / resistor dimming. I-A and I-AB are India-market versions that add input over-voltage protection (320~370VAC) while keeping the same output features as A and AB respectively. I-Type has a slightly higher no-load power (<0.75W).

Is XLG-50 a constant-voltage driver?

No. XLG-50 is a constant-power LED driver that operates in constant-current mode within the 22~54V region. It is designed for direct LED string connection, not for LED modules that require a constant-voltage supply.

Which dimming signal does the AB-Type support?

AB-Type supports 3-in-1 dimming: 0~10Vdc analog voltage, 10V PWM signal (100Hz~3kHz), or an external resistor. The DIM- port is isolated from Vo- and must not be connected to Vo-. Output current can be dimmed down to approximately 0%.

What does Class 2 and Type HL mean?

Class 2 means the output is limited to a safe power level, simplifying wiring requirements. Type HL means the driver is UL8750 listed for use in Class I, Division 2 hazardous location lighting fixtures when installed per manufacturer instructions.

Related Products

Explore individual models in the XLG-50 family.

Available Models

XLG-50-A - 25W / 1000mA / CC region 22 ~ 54V / IP67 | Current adjustable via built-in potentiometer
XLG-50-AB - 25W / 1000mA / CC region 22 ~ 54V / IP67 | Current adjustable via built-in potentiometer
XLG-50I-A - 25W / 1000mA / CC region 22 ~ 54V / IP67 | Current adjustable via built-in potentiometer
XLG-50I-AB - 25W / 1000mA / CC region 22 ~ 54V / IP67 | Current adjustable via built-in potentiometer