XLG-20-L LED driver
MEAN WELL XLG-20-L is an IP67 metal-housed constant-current LED driver, rated 18.9 W with a default output current of 350 mA and a 32.4–54 V constant-current region. Match the LED load to the exact model and operating limits.
Download MEAN WELL XLG-20 Datasheet (PDF)Download MEAN WELL LED Installation Manual
XLG catalog, PDF pages 1–7; XLG-20 specification dated 2026-02-04. Use the exact output and function suffix when selecting the driver.
Output and selection
Model and function
L identifies the specified output range; the blank function suffix has fixed output current without dimming leads.
Rated output power
18.9 W. Apply the published thermal limits.
Output current
350 mA default. Fixed rated output current.
Constant-current voltage region
32.4–54 V. Use a compatible LED string within this range.
Open-circuit voltage
60 V maximum.
Current accuracy and ripple
Current tolerance ±8.0%; line regulation <±3%. Output current ripple <20%, measured at 230 VAC, full load and 25°C ambient.
Startup
Setup 500 ms; rise 150 ms at 115 VAC / 230 VAC. Setup is measured at first cold start; repeated switching can increase it.
Input and performance
Input supply
90–305 VAC. AC frequency 47–63 Hz. Active PFC.
Input derating
The 60 Hz static curve shows full load from 90 to 305 VAC; thermal limits still apply.
Power factor
At full load: PF ≥0.97 at 115 VAC, ≥0.95 at 230 VAC and ≥0.91 at 277 VAC.
Total harmonic distortion
THD <20% at load ≥50% for 115/230 VAC, or load ≥75% for 277 VAC.
Input current
0.3 A / 115 VAC; 0.2 A / 230 VAC; 0.2 A / 277 VAC.
Inrush current
Typical cold start 5 A at 230 VAC; width 350 µs at 50% peak, per NEMA 410.
16 A circuit breaker loading
42 units on type B and 42 on type C at 230 VAC, as listed in this datasheet.
Leakage current
<0.75 mA at 277 VAC.
Typical efficiency
89% at the specification reference conditions: 230 VAC input, rated current and 25°C ambient.
No-load consumption
<0.5 W.
Protection
Short-circuit protection
Hiccup operation; automatically recovers after the fault is removed.
Operating conditions
Case temperature
Tcase −40 to +80°C; maximum case temperature +80°C. Case temperature and ambient temperature are different limits.
Ambient derating
Horizontal mounting: full load through 60°C ambient, reducing to 60% at 70°C. The cold region from −40 to −25°C is marked for 230 VAC input only. Keep the case within its stated limit.
Cooling and altitude
Natural air convection. Above 2000 m altitude, reduce permitted ambient temperature by 3.5°C per additional 1000 m for this fanless model.
Humidity and storage
Working humidity 20–95% RH non-condensing. Storage temperature −40 to +80°C.
Temperature coefficient
±0.03%/°C over 0–60°C.
Vibration
10–500 Hz, 5 G, 12 minutes per cycle; 72 minutes along each X, Y and Z axis.
Lifetime and warranty
Catalog typical life expectancy >50,000 hours with the marked tc point about 80°C or lower. Five-year manufacturer warranty, subject to its warranty terms. Lifetime decreases as case temperature increases.
Reliability
5721.2 K hours minimum by Telcordia SR-332; 747.1 K hours minimum by MIL-HDBK-217F at 25°C. MTBF is not a service-life guarantee.
Control and adjustment
Output setting
The blank function version has fixed rated output current and no external dimming connection.
Safety and EMC
Construction and classification
Metal housing, IP67, active PFC and catalog Class 2 power-unit design. XLG-20 input is identified as Class I in the feature specification; connect its protective-earth lead.
Applicable safety standards
UL8750 (Type HL); CSA C22.2 No.250.13-12. ENEC AS/NZS IEC / BS EN/EN61347-1 and BS EN/EN61347-2-13 independent; BS EN/EN62384; GB/T19510.1 and GB/T19510.213; J61347-1(H29) and J61347-2-13(H29); EAC TP TC 004; KC61347-1 and KC61347-2-13. IS 15885 (Part 2/Sec 13) is also listed.
Certification applicability
Check the exact product markings and destination requirements. Units sourced from the Americas may not carry CCC, PSE, BIS or KC logos.
Electrical insulation
Withstand: input–output 3.75 kVAC; input–FG 2.0 kVAC; output–FG 1.5 kVAC. Insulation resistance for these pairs: 100 MΩ at 500 VDC, 25°C and 70% RH.
EMC emissions
Conducted/radiated: BS EN/EN55015 (CISPR15), GB/T17743, J55015(H29). Harmonic current: BS EN/EN61000-3-2 and GB17625.1, Class C at load ≥50%; flicker: BS EN/EN61000-3-3.
EMC immunity
BS EN/EN61547. ESD Level 3, 8 kV air and Level 2, 4 kV contact; radiated/EFT/conducted Level 3; magnetic field Level 4. Surge 2 kV line-to-line, 4 kV line-to-earth. Test series BS EN/EN61000-4-2, -3, -4, -5, -6 and -8.
Voltage dips and interruptions
BS EN/EN61000-4-11: >95% dip for 0.5 periods; 30% dip for 25 periods; >95% interruptions for 250 periods.
Final-equipment compliance
Requalify EMC on the complete installation. For the catalog ErP lighting-fixture condition, install behind a switch rather than permanently connecting to the mains.
Type HL application
The catalog identifies Type HL for Class I, Division 2 hazardous (classified) locations; final equipment and installation must meet the applicable requirements.
Dimensions and installation
Size and mounting
95 × 63 × 30 mm (L × W × H), case 288A; drawing tolerance ±1 mm. Four Ø4.5 mm mounting holes with 89 mm longitudinal spacing and 40 mm transverse spacing. Recommended mounting is horizontal on a flat surface.
Power leads
AC/L brown, AC/N blue, earth green/yellow; output V+ red and V− black. Input cable: SJOW 17 AWG × 3 cores / H05RN-F 3 × 1.0 mm²; output: SJOW 17 AWG × 2 cores / 1.0 mm². AC and output lead lengths 150±10 mm.
Case-temperature measurement
Use the tc point marked in the mechanical drawing. Its location is dimensioned 61.3 mm and 31.6 mm from the shown drawing references; do not substitute ambient temperature for tc.
Catalog packing reference per unit
0.34 kg = 340 g for this blank type. This is the catalog per-unit packing reference, not a measured net weight or an entire shipping-carton weight.
Accessories and selection
Select installation hardware and any dimming controller for the actual model, load and environment. The inspected series sheets do not specify a dedicated MEAN WELL accessory order code for this model. IP67 is subject to the installation instructions and does not authorize immersion.
Installation manual requirements
Installation safety
Disconnect the mains supply and prevent accidental reconnection before installation or maintenance. Have faults examined by a qualified technician; do not open the power-supply case yourself.
Ventilation and mounting
Keep ventilation clear and do not stack objects on the unit. Keep 10–15 cm clearance when the adjacent device is a heat source. Follow this model’s mounting, ambient-temperature and output-derating requirements.
System wiring and protection
Use approved primary and secondary wiring rated for at least the applicable unit current. Provide suitable system-level insulation and an enclosure around single-insulated wiring; verify EMC again in the completed system. Connect a fitted FG lead to protective earth according to the model wiring; the manual exempts only units marked Class II and ungrounded.
Environmental and load limits
Do not immerse the unit or install it near fire or above its specified ambient limit. Keep output current and power within the model’s rated operating envelope. If a fitted external flexible cable is damaged, replacement is limited to the manufacturer, its service agent or a similarly qualified person.
Connection seals and support
If waterproof connectors are fitted, secure their connections to prevent water entry. Verify the mounting structure and luminaire strength; use safety cables for bay-light applications.
Confirm the exact LED load, operating temperature, control interface and installation requirements against the linked datasheet and manual before commissioning.
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