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Mean Well PWM-120-12DA Power Supply 120W 12V - DALI 10A

Name: Mean Well PWM-120-12DA Power Supply 120W 12V - DALI 10A
Brand: Mean Well
SKU: PWM-120-12DA
Price: 63.98 USD
Availability: InStock

PWM style outputfully isolated plastic caseIP67Class II design without FGDALI

SKU PWM-120-12DA

$63.98 USD

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In stock

Overview

PWM-120-12DA is the 12V output model of this series: rated current 10A, rated power 120W, typical efficiency 88.5%.

PWM-120 series is a 120W AC/DC LED driver featuring the constant voltage mode with PWM style output, which is able to maintain the color temperature and the brightness homogeneity when driving all kinds of LED strips. PWM-120 operates from 90～305VAC and offers models with different rated voltage ranging between 12V and 48V. Thanks to the high efficiency up to 90.5%, with the fanless design, the entire series is able to operate for -40℃ ~ +90℃ case temperature under free air convection. The entire series is rated with IP67 ingress protection level and is suitable to work for dry, damp or wet locations. PWM-120 is equipped with dimming function that varies the duty cycle of the output, providing great flexibility for LED strips applications.

Features

Constant voltage PWM style output
Emergency lighting application is available according to IEC61347-2-13
Built-in active PFC function and class II design
No load power consumption<0.5W/ standby power consumption<0.5W(DA2-type)
Fully encapsulated with IP67 level
Function options: 3 in 1 dimming (dim-to-off); DALI-2
Minimum dimming level 0.2% for DALI-2 type
Typical lifetime>50000 hours and 5 years warranty

Specifications

PWM-120-12DASpecifications from the official datasheet (2026-07-08 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 10A
RATED POWER: 120W
DIMMING RANGE: 0 ~ 100%
PWM FREQUENCY (Typ.): 1.47kHz for Blank-Type, 2.5kHz for DA2-Type
SETUP, RISE TIME^{Note.2 Note.9}: 500ms, 80ms/ 230VAC or 115VAC
HOLD UP TIME (Typ.): 16ms/230VAC or 115VAC

INPUT

VOLTAGE RANGE^Note.3: 90 ~ 305VAC 127 ~ 431VDC (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.97/115VAC, PF>0.96/230VAC, PF>0.93/277VAC @ full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD< 20%(@load≧60%/115VAC, 230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION” section)
EFFICIENCY (Typ.): 88.5%
AC CURRENT (Typ.): 1.3A / 115VAC 0.65A / 230VAC 0.55A / 277VAC
INRUSH CURRENT (Typ.): COLD START 60A(twidth=520μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. NO. of PSUs on 16A CIRCUIT BREAKER: 4 units (circuit breaker of type B) / 6 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.25mA / 277VAC
NO LOAD/STANDBY POWER CONSUMPTION: No load power consumption<0.5w for blank-type;standby power consumption<0.5W for DA2-type

PROTECTION

OVERLOAD: 108 ~ 130% rated output power Hiccup mode, recovers automatically after fault condition is removed
SHORT CIRCUIT: 12V/24V hiccup mode and 36V/48V shut down mode(except for DA2-type) Hiccup mode,recovers automatically after fault condition is removed (only for DA2-type)
OVER VOLTAGE: 15 ~ 17V Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: Tcase=-40 ~ +90℃ (Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)
MAX. CASE TEMP.: Tcase=+90℃
WORKING HUMIDITY: 20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY: -40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT: ±0.03%/℃ (0 ~ 45℃,except 0 ~ 40℃ for 12V)
VIBRATION: 10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS^Note.5: UL8750( type ”HL” ), CSA C22.2 No. 250.13-12; ENEC BS EN/EN61347-1, BS EN/EN61347-2-13, BS EN/EN62384 independent, IP67,BIS IS 15885(Part2/Sec13)(for 12,24 Blank and DA2 Type), EAC TP TC 004, GB/T19510.1,GB/T19510.213 approved; Design refer to BS EN/EN60335-1; According to BS EN/EN61347-2-13 appendix J suitable for emergency installations(EL)(AC Input: 100-240Vac)(for DA2-Type only)
DALI STANDARDS: IEC62386-101, 102, 207,251 for DA2-Type only, Device type 6(DT6)
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC; I/P-DA:1.5KVAC; O/P-DA:1.5KVAC
ISOLATION RESISTANCE: I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION^Note.6: Compliance to BS EN/EN55015, BS EN/EN61000-3-2 Class C (@load≧60%) ; BS EN/EN61000-3-3,GB/T 17743, GB17625.1;EAC TP TC 020
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11; BS EN/EN61547, light industry level (surge immunity Line-Line 2KV), EAC TP TC 020

OTHERS

MTBF: 2243.7K hrs min. Telcordia SR-332 (Bellcore) ; 228.7K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 191*63*37.5mm (L*W*H)
PACKING: 0.97Kg; 15pcs/15.6Kg/0.87CUFT

Certifications & ratings

AC Input: 100-240Vac (for DA2-Type only)

Test conditions and notes9

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
3. Length of set up time is measured at first cold start. Turning ON/OFF the driver may lead to increase of the set up time.
4. The driver is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
5. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 75℃or less.
6. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
7. The ambient temperature derating of 3.5℃/1000m with fanless models and of 5℃/1000m with fan models for operating altitude higher than 2000m(6500ft).
8. For any application note and IP water proof function installation caution, please refer our user manual before using. https://www.meanwell.com/Upload/PDF/LED_EN.pdf
9. Based on IEC 62386-101/102 DALI power on timing and interruption regulations, the set up time needs to test with a DALI controller which can support for DALI power on function, otherwise the set up time will be higher than 0.5 second for DA type.

Technical drawings

PWM-120-12DA DIMMING OPERATION — DIMMING OPERATION

PWM-120-12DA ◎ Applying additive resistance — ◎ Applying additive resistance

PWM-120-12DA OUTPUT LOAD vs TEMPERATURE — OUTPUT LOAD vs TEMPERATURE

PWM-120-12DA STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

PWM-120-12DA TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

PWM-120-12DA Block Diagram — Block Diagram

PWM-120-12DA Mechanical Specification — Mechanical Specification

PWM-120-12DA Recommend Mounting Direction — Recommend Mounting Direction

Typical applications

LED strip lighting
Indoor LED lighting
LED decorative lighting
LED architecture lighting
Industrial lighting
Type "HL" for use in class I, division 2 hazardous (classified) location.

Downloads

Datasheet1

PWM-120-12DA datasheetPWM-120-spec.pdf · 2026-07-08 edition PDF Download

Certificates5

UL Certificate (PWM-120)(EN) PDF Download

CB Certificate (PWM-120)(EN) PDF Download

EMC Certificate (PWM-120)(EN) PDF Download

ENEC Certificate (PWM-120)(EN) PDF Download

ErP Certificate (PWM-120)(EN) PDF Download

Test reports1

Test Report(PWM-120-12)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the PWM-120-12DA with a DALI building management system to control 12V LED strips?

Yes. The PWM-120-12DA has a DALI dimming interface, allowing it to be addressed and controlled by any DALI-compliant building management or lighting control system. It outputs 12V at up to 10A (120W) with a PWM-style waveform suited for 12V LED strips.

Is the PWM-120-12DA suitable for outdoor architectural LED lighting installations?

Yes. The IP67 rating means the driver is fully protected against dust and temporary water immersion, making it appropriate for outdoor architectural or landscape lighting enclosures. Its -40°C to +90°C operating range covers a wide range of climate conditions.

How many meters of 12V LED strip can the PWM-120-12DA power?

With a maximum output of 120W at 12V, the usable strip length depends on your strip's wattage per meter. For a 12W/m strip, that is up to 10 meters (120 ÷ 12); for a 14.4W/m strip, approximately 8.3 meters (120 ÷ 14.4). Check your strip's rated power per meter and apply a 20% safety margin.

Can the PWM-120-12DA be used to power 12V LED signage in a DALI-controlled office environment?

Yes. The DALI interface allows the driver to integrate directly into DALI lighting networks common in commercial office environments. The 120W, 12V output is appropriate for powering 12V LED modules or strips inside illuminated signage.

Does the PWM-120-12DA work in very cold outdoor installations, such as freezer rooms or northern climates?

Yes. The operating temperature range of -40°C to +90°C (Tcase) means the PWM-120-12DA is rated for operation in freezer room temperatures and cold outdoor climates. Note that output load may need derating at extreme temperatures as per the 'OUTPUT LOAD vs TEMPERATURE' section.

Can I use the PWM-120-12DA in a museum or gallery display case needing precise DALI dimming of 12V LED strips?

Yes. The DALI interface provides precise digital dimming control, which is well-suited to museum and gallery environments where consistent, programmable lighting levels are required. The PWM-style output delivers smooth dimming to 12V LED strips at up to 10A.

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