MEAN WELL HLG-120H-42B Constant Voltage/Constant Current LED Driver
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About the MEAN WELL HLG-120H-42B Constant Voltage/Constant Current LED Driver
HLG-120H-42B LED driver
MEAN WELL HLG-120H-42B is a constant voltage/constant current led driver with 42 V nominal output, 2.9 A rated current and 121.8 W rated power. Its IP67 metal housing uses fanless convection cooling and active PFC. 3-in-1 dimming by 1–10 VDC, 10 V PWM or resistance. Intended LED applications include street, architectural, bay and flood lighting, subject to the operating and installation limits below.
Download MEAN WELL HLG-120H Datasheet (PDF) Download MEAN WELL LED Installation Manual
HLG catalog, PDF pages 41–50. Use the exact output and function suffix when selecting the driver.
Output and input specifications
Rated output
42 VDC; 2.9 A; 121.8 W. Constant-current region: 21–42 V. Operate within the output envelope and input/temperature derating limits.
Output adjustment
No built-in output voltage/current potentiometer adjustment is specified for this function code.
Ripple and regulation
Ripple/noise: 200 mVp-p maximum; voltage tolerance ±1%; line regulation ±0.5%; load regulation ±0.5%. Ripple test: 20 MHz bandwidth, 12-inch twisted pair, parallel 0.1 µF and 47 µF capacitors. Tolerance includes setup, line and load regulation.
Efficiency and test conditions
Typical efficiency: 93%. Unless otherwise stated, specifications are measured at 230 VAC, rated current and 25°C ambient.
Input range and frequency
90–305 VAC / 127–431 VDC; 47–63 Hz.
Active PFC and harmonics
Power factor ≥0.98 / 0.95 / 0.93 at 115 / 230 / 277 VAC, full load. Total harmonic distortion <20% at loads ≥50% at 115 and 230 VAC; 75% at 277 VAC. Built-in active PFC; block-diagram switching frequency: 100 kHz.
AC current and startup
Typical input current: 1.4 / 0.6 / 0.55 A at 115 / 230 / 277 VAC. Setup / rise time: 1200 / 50 ms at 115 VAC; 500 / 50 ms at 230 VAC; hold-up: 12 ms at both 115 and 230 VAC. Startup values apply to the first cold start; repeated on/off cycling can increase startup time.
Inrush, breaker and leakage
Cold-start inrush at 230 VAC: 60 A; 375 µs; pulse width at 50% of peak per NEMA 410. Maximum units on a 16 A breaker, B-type / C-type: 5 / 9. Leakage current <0.75 mA at 277 VAC.
Model and control configuration
Ordering code and function
HLG-120H series; 42 V output; B function: 3-in-1 dimming by 1–10 VDC, 10 V PWM or resistance.