Mean Well ELG-100-42 Power Supply | Constant Voltage + Constant Current LED Driver

Overview

ELG-100-42 is the 42V output model of this series: rated current 2.28A, typical efficiency 90%.

ELG-100 series is a 100W AC/DC LED driver featuring the dual mode constant voltage and constant current output. ELG-100 operates from 100~360VAC and offers models with different rated voltage ranging between 24V and 54V. Thanks to the high efficiency up to 91%, with the fanless design, the entire series is able to operate for -40℃ ~ +90℃ case temperature under free air convection. The design of metal housing and IP67/IP65 ingress protection level allows this series to fit both indoor and outdoor applications. ELG-100 is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system

Features

Constant Voltage + Constant Current mode output
Metal housing design with functional Ground
Built-in active PFC function
Class 2 power unit
No load / Standby power consumption <0.5W
IP67 / IP65 rating for indoor or outdoor installations
Function options: output adjustable via potentiometer; 3 in 1 dimming (dim-to-off); Smart timer dimming; DALI
Typical lifetime>50000 hours
5 years warranty

Specifications

ELG-100-42Specifications from the official datasheet (2026-07-06 edition)

OUTPUT

DC VOLTAGE: 42V
CONSTANT CURRENT REGION^Note.2: 21 ~ 42V
RATED CURRENT: 2.28A
RATED POWER 200VAC ~ 305VAC: 95.76W
RATED POWER 100VAC ~ 180VAC: 70W
RIPPLE & NOISE (max.)^Note.3: 250mVp-p
VOLTAGE ADJ. RANGE: Adjustable for A/AB-Type only (via the built-in potentiometer) 37.8 ~ 46.2V
CURRENT ADJ. RANGE: Adjustable for A/AB-Type only (via the built-in potentiometer) 1.14 ~ 2.28A
VOLTAGE TOLERANCE^Note.4: ±2.5%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME^Note.6: 1000ms, 80ms/115VAC 500ms, 100ms/230VAC
HOLD UP TIME (Typ.): 15ms/115VAC 10ms/230VAC

INPUT

VOLTAGE RANGE^Note.5: 100 ~ 305VAC 142 ~ 431VDC continue,320VAC for 24Hrs; 360VAC for 1Hr (Please refer to "STATIC CHARACTERISTIC" section)
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR: PF≧0.97/115VAC, PF≧0.95/230VAC, PF≧0.92/277VAC@full load (Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)
TOTAL HARMONIC DISTORTION: THD< 20%(@load≧50%/115VC; @load≧60%/230VAC; @load≧75%/277VAC) (Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)
EFFICIENCY (Typ.): 90%
AC CURRENT: 1.1A / 115VAC 0.6A / 230VAC 0.5A/277VAC
INRUSH CURRENT(Typ.): COLD START 60A(twidth=850μs measured at 50% Ipeak) at 230VAC; Per NEMA 410
MAX. No. of PSUs on 16A CIRCUIT BREAKER: 3 units (circuit breaker of type B) / 6 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT: <0.75mA / 277VAC
NO LOAD / STANDBY POWER CONSUMPTION: No load power consumption <0.5W for Blank / A -Type Standby power consumption <0.5W for B / AB / DA-Type

PROTECTION

OVER CURRENT: 95 ~ 108% Constant current limiting, recovers automatically after fault condition is removed
SHORT CIRCUIT: Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 47 ~ 54V Shut down output voltage, re-power on to recover
OVER TEMPERATURE: Shut down output 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 ~ 60℃)
VIBRATION: 10 ~ 500Hz, 5G 12min./1cycle, period for 72min. each along X, Y, Z axes

SAFETY & EMC

SAFETY STANDARDS: UL8750(type”HL”), CSA C22.2 No. 250.13-12; IEC/BS EN/EN/AS/NZS 61347-1, IEC/BS EN/EN/AS/NZS 61347-2-13 independent, BS EN/EN62384; EAC TP TC 004;BIS IS15885(for 24/24A/24B/24DA/36/36A/36B/42/42A/42ADA/42B/48/48B/54/54A/54ADA/54B only); GB/T19510.1, GB/T19510.213; IP65 or IP67;KC61347-1,KC61347-2-13 approved
DALI STANDARDS: Compliance to IEC62386-101,102,(207 by request) for DA Type only
WITHSTAND VOLTAGE: I/P-O/P:3.75KVAC I/P-FG:2.0KVAC O/P-FG:1.5KVAC
ISOLATION RESISTANCE: I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION: 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; KC KN15,KN61547
EMC IMMUNITY: Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11; BS EN/EN61547, light industry level (surge immunity Line-Earth 6KV, Line-Line 4KV); EAC TP TC 020; KC KN15,KN61547

OTHERS

MTBF: 2920.8K hrs min. Telcordia SR-332 (Bellcore) 282.9Khrs min. MIL-HDBK-217F (25℃)
DIMENSION: 199*63*35.5mm (L*W*H)
PACKING: 0.85kg; 16pcs/14.2kg/0.72CUFT

Certifications & ratings

Type: HL

Test conditions and notes13

1. All parameters NOT specially mentioned are measured at 230VAC input, rated current and 25℃ of ambient temperature.
2. Please refer to "DRIVING METHODS OF LED MODULE". For DA-Type, Constant Current region is 60%~100% of maximum voltage under rated power delivery.
3. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
4. Tolerance : includes set up tolerance, line regulation and load regulation.
5. De-rating may be needed under low input voltages. Please refer to “STATIC CHARACTERISTIC” sections for details.
6. 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.
7. 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)
8. This series meets the typical life expectancy of >50,000 hours of operation when Tcase, particularly tc point (or TMP, per DLC), is about 80℃ or less.
9. Please refer to the warranty statement on MEAN WELL's website at http://www.meanwell.com
10. 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).
11. 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
12. To fulfill requirements of the latest ErP regulation for lighting fixtures, this LED power supply can only be used behind a switch without permanently connected to the mains.
13. For A/AB type need to consider build in using to comply with Type HL application.

Technical drawings

ELG-100-42 Block Diagram — Block Diagram

ELG-100-42 DIMMING OPERATION — DIMMING OPERATION

ELG-100-42 OUTPUT LOAD vs TEMPERATURE(Note.9) — OUTPUT LOAD vs TEMPERATURE(Note.9)

ELG-100-42 STATIC CHARACTERISTIC — STATIC CHARACTERISTIC

ELG-100-42 TOTAL HARMONIC DISTORTION — TOTAL HARMONIC DISTORTION

ELG-100-42 Mechanical Specification — Mechanical Specification

ELG-100-42 ※ 3Y Model (3-wire input) — ※ 3Y Model (3-wire input)

ELG-100-42 Recommend Mounting Direction — Recommend Mounting Direction

Typical applications

LED street lighting
LED architectural lighting
LED bay lighting
LED floodlighting
Type “HL” for use in Class I, Division 2 hazardous (Classified) location.

Downloads

Certificates5

CB Certificate (ELG-100)(EN) PDF Download

UL Certificate (ELG-100)(EN) PDF Download

EMC Certificate (ELG-100)(EN) PDF Download

ERP Certificate (ELG-100)(EN) PDF Download

ENEC Certificate (ELG-100)(EN) PDF Download

Test reports1

Test Report (ELG-100-42)(EN) PDF Download

Catalogues1

Mean Well LED Driver Catalog PDF Download

FAQ

Can I use the ELG-100-42 to power outdoor LED signage?

Yes. The ELG-100-42 carries an IP67 waterproof rating, meaning it is fully sealed against dust and temporary water immersion, making it suitable for outdoor LED signage enclosures exposed to rain. It delivers 95.76W at 42V DC and is rated for a case temperature (Tcase) of -40°C to +90°C, with load derating at high temperatures.

Is the ELG-100-42 suitable for LED strip lighting installations?

Yes, provided your LED strips are rated for 42V DC. The driver outputs a constant 2.28A and up to 95.76W total (70W on 100–180VAC input). For a strip rated at 10W per meter, you could run approximately 9.5 meters at full 95.76W load—always verify your strip’s rated power per meter before finalising the run length.

Can this driver be installed in a wet or damp location?

Yes. With an IP67 rating, the ELG-100-42 is dust-tight and protected against temporary water immersion. It is appropriate for damp or wet locations such as outdoor facades or covered wet zones; follow the IP installation cautions in MEAN WELL's user manual.

Can I use the ELG-100-42 for LED architectural or facade lighting?

Yes. The 42V output and 95.76W capacity make it a practical choice for medium-scale architectural LED runs on building facades. Its IP67 sealing and -40°C to +90°C case temperature rating allow outdoor mounting; follow the IP installation cautions in MEAN WELL's user manual.

What is the difference between the ELG-100-42 and ELG-100-42A, ELG-100-42AB, ELG-100-42B, and ELG-100-42DA variants?

All share the same 95.76W / 42V / 2.28A output and 199×63×35.5 mm footprint. The base ELG-100-42 has no output adjustment or dimming. The ‘A’ suffix adds a potentiometer for output voltage and current adjustment; the ‘B’ suffix adds 3-in-1 dimming (0-10V / PWM / resistance); the ‘AB’ combines both ‘A’ and ‘B’ features; and the ‘DA’ adds DALI dimming. The ‘A’ and ‘AB’ variants are rated IP65, while the base ‘-42’ and ‘-42B’ are IP67.

Does the ELG-100-42 work on both 120V and 240V mains supplies?

Yes. The ELG-100-42 accepts a universal AC input of 100–305VAC, so it operates on North American 120V, European 230V, and high-line industrial 277V feeds without any manual voltage switching. On 100–180VAC input the rated power is 70W; the full 95.76W is available at 200–305VAC.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Model	Power	Voltage	Current	IP Rating
Mean Well S-ELG-100-24-3Y Power Supply 96W 24V 4A — 3-Wire Input (with Earth)	96W	24V	4A	IP67	View
Mean Well ELG-100-24DA-3Y Power Supply 96W 24V - DALI 4A — 3-Wire Input (with Earth)	96W	24V	4A	IP67	View
Mean Well ELG-100-24B-3Y Power Supply 96W 24V - Dimmable 4A — 3-Wire Input (with Earth)	96W	24V	4A	IP67	View
Mean Well ELG-100-24AB Power Supply 100W 24V - Adjustable and Dimmable 4A	96W	24V	4A	IP65	View
Mean Well ELG-100-48DA-3Y Power Supply 96W 48V - DALI 2A — 3-Wire Input (with Earth)	96W	48V	2A	IP67	View

Please log in to write a review.

{ "id":8422068060459, "variants" :[{ "context":"default", "variant_id": 45628470624555, "sku":"ELG-100-42", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }

Mean Well ELG-100-42 Power Supply 95.76W 42V 2.28A

Select model — 25 in this family

Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC

OTHERS

Certifications & ratings

Technical drawings

Typical applications

Downloads

Certificates5

Test reports1

Catalogues1

FAQ

Payment & Security

Other ELG-100 Models

Write a review

Your cart

Mean Well ELG-100-42 Power Supply 95.76W 42V 2.28A

Features

Typical applications

Company Information

Services and Support

Choose options