• Output Power: 40 W
• Output Current Range: 600 mA – 1400 mA (DIP-switch selectable)
• Constant Current Region: 9 – 54 V DC
• Input Voltage Range: 100 – 305 V AC / 141 – 400 V DC, 47 – 63 Hz
• Efficiency: 88%
• Dimming Functions: 3-in-1 Dimming (0–10V, 10V PWM, Resistance; Dim-to-off)
• Inrush Current: max. 10 A @ 230 VAC
• Standby Power Consumption: < 0.5 W
• Operating Temperature: −25 °C to +90 °C (Tcase)
• Cooling: Free air convection (fanless)
• Protections: Short Circuit, Over Temperature
• Isolation Voltage: 3750 V AC Input to Output
• Dimensions (L x W x H): 147 mm x 40 mm x 32 mm (S-Type) / 107 mm x 40 mm x 32 mm (Built-in)
• Weight: approx. 193 g (Built-in) / 210 g (S-Type)
• Safety & EMC Certificates: ENEC, UL8750 Class P, CB, CE, EAC, BIS
• Protection Class: Class II plastic housing (no FG required)
• Manufacturer Warranty: 5 Years

Information on MEAN WELL XLC-40-H-B

The MEAN WELL XLC-40-H-B is a highly adaptable 40W constant power LED driver engineered with integrated 3-in-1 dimming capabilities. Featuring user-selectable output currents from 600 mA to 1400 mA via DIP switches, it caters seamlessly to diverse LED engine requirements across a voltage window of 9 to 54V DC. The B-type model delivers smooth, full-range brightness adjustment using 0–10VDC, 10V PWM signals, or resistance with complete Dim-to-off functionality. Operating on a broad input range of 100 to 305V AC and supporting DC inputs (176–280V DC), it complies with strict emergency lighting (EL) regulations.

Designed in a double-insulated Class II plastic housing, this compact driver avoids the need for a protective ground wire, speeding up field installation in downlights, recessed lamps, and architectural fixtures. It achieves an impressive 88% efficiency rating and enforces ErP-compliant flicker-free illumination to enhance visual comfort. The fanless thermal construction ensures reliable continuous operation across case temperatures from -25 °C up to +90 °C. Equipped with automatic protection against short circuits and thermal overload, the driver guarantees long-term durability supported by an expected lifetime of over 50,000 hours and MEAN WELL's 5-year manufacturer warranty.