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Ltech SE-40-300-1050-W1D 40W 300-1050mA LED Driver - NFC, DALI2 Dimmable

0.01% dimming depthoutput current adjustable with 1mA stepsuitable for class I/II/III indoor light fixtures

SKU SE-40-300-1050-W1D

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Overview

SE-40-300-1050-W1D is the 9-42Vdc output model of this series: typical efficiency 88%.

Features

Housing made from SAMSUNG/COVESTRO's V0 flame retardant PC materials.
Ultra small, thin and lightweight, screwless end cap.
Change the output current, DALI address and other parameters via the APP.
Set the DALI group and scene in the advanced DALI template via the APP.
Adjustable output current with 1mA step.
Soft-on and fade-in dimming function enhances your visual comfort.
T-PWM™ super deep dimming technology, 0.01% dimming depth.
The whole dimming process is flicker-free with high frequency exemption level.
Comply with the EU's ErP Directive, networked standby<0.5W.
When there is no load, the output will be 0V to prevent damage to LEDs due to poor contact.
Overheat, over voltage, overload, short circuit protection and automatic recovery.
Suitable for ClassⅠ/Ⅱ/Ⅲindoor light fixtures.
Normal service life can reach 100,000 hours.
5-year warranty (Rubycon capacitor).

Specifications

SE-40-300-1050-W1DSpecifications from the official datasheet

Features

Output Type: Constant current
Dimming Interface: DALI-2 DT6
Output Feature: Isolation
Protection Grade: IP20
Insulation Grade: Class II [Suitable for class I / II /III light fixtures]

OUTPUT

Output Voltage: 9-42Vdc
Maximum output voltage: ≤55Vdc
Output Current Range: 300-1050mA
Output Power Range: 2.7W-40W
Dimming Range: 0~100%, down to 0.01%
LF Current Ripple: <3%(Maximum current for non dimming state)
Current Accuracy: ±5%
PWM Frequency: <3600Hz

INPUT

DC Voltage Range: 120-250Vdc
AC Voltage Range: 100-240Vac
EoF: 100%
Input Voltage: 115Vac/230Vac
Frequency: 50/60Hz
Input Current: ≤0.45A/115Vac, ≤0.22A/230Vac
Power Factor: PF>0.95/115Vac (at full load), PF>0.9C/230Vac (at full load)
THD: THD<10%/230Vac, at full load
Efficiency (Typ.): 88%
Inrush Current: Cold start 25A(Test twidth=130us tested under 50% Ipeak)/230Vac
Anti Surge: L-N: 2KV
Leakage Current: Max. 0.5mA

ENVIRONMENT

Working Temperature: ta: -20~45°C tc: 90°C
Working Humidity: 20~95%RH, non-condensing
Storage Temperature/Humidity: -40~80°C/10~95%RH
Temperature Coefficient: ±0.03%/°C(0-50°C)
Vibration: 10~500Hz, 2G 12min/1cycle, 72 min for X, Y and Z axes respectively

PROTECTION

Overload Protection: Automatically protect the device when the load exceeds 102% of the rated power. Automatically recover once load is reduced
Overheat Protection: Intelligently adjust or turn off the current output if the PCB temperature ≥110°C. When the PCB temperature <90°C, automatically recover normal output
Overvoltage Protection: Automatically protect the device when voltage exceeds the no-load voltage. It can be recovered automatically
Short Circuit Protection: Enter hiccup mode if short circuit occurs, and recover automatically

SAFETY & EMC

Withstand Voltage: I/P-O/P: 3750Vac
Insulation Resistance: I/P-O/P: 100MΩ/500VDC/25°C/70%RH
Safety Standards: Parameter Standard Test Level

CCC China GB19510.1, GB19510.14
TUV Germany EN61347-1, EN61347-2-13, EN62493
CB CB Member States IEC61347-1, IEC61347-2-13
CE European Union EN61347-1, EN61347-2-13, EN62384
KC Korea KC61347-1, KC61347-2-13
EAC Russia IEC61347-1, IEC61347-2-13
RCM Australia AS61347-1, AS61347-2-13
ENEC Europe EN61347-1, EN61347-2-13, EN62384
UKCA Britain BS EN 61347-1, BS EN 61347-2-13, BS EN 62493
BIS India IS 15885 (PART 2/SEC 13)
CUL Canada CSA C22.2 NO.250.13
UL America UL 8750
EMC Emission: Parameter Standard Test Level

CCC China GB/T17743, GB17625.1
CE European Union EN55015, EN61000-3-2, EN61000-3-3, EN61547
KC Korea KSC 9815, KSC 9547
EAC Russia IEC62493, IEC61547, EH55015
RCM Australia EN55015, EN61000-3-2, EN61000-3-3, EN61547
UKCA Britain BS EN IEC 55015, BS EN IEC 61000-3-2, BS EN 61000-3-3, BS EN 61547
CUL Canada ICES-005
UL America FCC PART 15B
EMC Immunity: EN61000-4-2,3,4,5,6,8,11, EN61547

Parameter	Standard	Test Level
CCC	China	GB19510.1, GB19510.14
TUV	Germany	EN61347-1, EN61347-2-13, EN62493
CB	CB Member States	IEC61347-1, IEC61347-2-13
CE	European Union	EN61347-1, EN61347-2-13, EN62384
KC	Korea	KC61347-1, KC61347-2-13
EAC	Russia	IEC61347-1, IEC61347-2-13
RCM	Australia	AS61347-1, AS61347-2-13
ENEC	Europe	EN61347-1, EN61347-2-13, EN62384
UKCA	Britain	BS EN 61347-1, BS EN 61347-2-13, BS EN 62493
BIS	India	IS 15885 (PART 2/SEC 13)
CUL	Canada	CSA C22.2 NO.250.13
UL	America	UL 8750

Parameter	Standard	Test Level
CCC	China	GB/T17743, GB17625.1
CE	European Union	EN55015, EN61000-3-2, EN61000-3-3, EN61547
KC	Korea	KSC 9815, KSC 9547
EAC	Russia	IEC62493, IEC61547, EH55015
RCM	Australia	EN55015, EN61000-3-2, EN61000-3-3, EN61547
UKCA	Britain	BS EN IEC 55015, BS EN IEC 61000-3-2, BS EN 61000-3-3, BS EN 61547
CUL	Canada	ICES-005
UL	America	FCC PART 15B

ErP

Power Consumption: Parameter Standard

Networked standby <0.5W (After shutdown by command)
No-load power consumption <0.5W (When the lamp is not connected)
Flicker/Stroboscopic Effect: Parameter Standard

IEEE1789 Meet IEEE 1789 standard/High frequency exemption level
CIE SVM Pst LM≤1.0, SVM≤0.4
DF: Parameter Standard

Phase factor DF≥0.9

Parameter	Standard
Networked standby	<0.5W (After shutdown by command)
No-load power consumption	<0.5W (When the lamp is not connected)

Parameter	Standard
IEEE1789	Meet IEEE 1789 standard/High frequency exemption level
CIE SVM	Pst LM≤1.0, SVM≤0.4

Parameter	Standard
Phase factor	DF≥0.9

OTHERS

Weight(N.W.): 170g±10g
Dimensions: 142×40×23mm(L×W×H)

Technical drawings

SE-40-300-1050-W1D Product Size — Product Size

SE-40-300-1050-W1D Dimensions (mm) — Dimensions (mm)

SE-40-300-1050-W1D Product Size (2) — Product Size (2)

SE-40-300-1050-W1D Table of Typical Corresponding Parameters for Current — Table of Typical Corresponding Parameters for Current

SE-40-300-1050-W1D Table of Typical Corresponding Parameters for Current (2) — Table of Typical Corresponding Parameters for Current (2)

SE-40-300-1050-W1D Application Diagram of Protective Cover — Application Diagram of Protective Cover

SE-40-300-1050-W1D Installation Precautions — Installation Precautions

SE-40-300-1050-W1D Illustration (page 4) — Illustration (page 4)

SE-40-300-1050-W1D 2.Edit the parameters — 2.Edit the parameters

SE-40-300-1050-W1D Ready for scanning — Ready for scanning

SE-40-300-1050-W1D Relationship Diagrams — Relationship Diagrams

SE-40-300-1050-W1D Lifetime[H] — Lifetime[H]

SE-40-300-1050-W1D Efficiency[%] — Efficiency[%]

Downloads

Datasheet1

SE-40-300-1050-W1D datasheetSE_40_300_1050_W1D_spec_sheet.pdf PDF Download

FAQ

What is the Ltech SE-40-300-1050-W1D designed for?

The Ltech SE-40-300-1050-W1D is a 40W constant-current LED driver intended for LED lighting applications that require dimming control. It is positioned for commercial and professional use where adjustable output current and DALI-based dimming are important.

What makes this LED driver different from a basic non-dimmable driver?

This model stands out because it supports DALI-2 DT6 dimming. It also offers adjustable output current in 1mA steps, along with soft-on and fade-in dimming features for a more refined lighting experience.

Is the output current fixed or adjustable on this model?

The output current is adjustable on this driver rather than being limited to a single fixed value. Ltech specifies 1mA adjustment steps, which gives more flexibility when matching the driver to compatible constant-current LED loads.

Does this driver support DALI control features beyond standard dimming?

Yes. The product description states that DALI address and other parameters can be changed via the app, and that DALI group and scene settings can be handled in the advanced DALI template. That makes this model more capable than a driver that only offers basic dimming response.

What operating environment is this driver rated for?

This model is specified for ambient temperatures from -20°C to 45°C. Buyers should confirm that the intended installation environment stays within that range for normal operation.

What are the key physical and durability features of this driver?

Ltech describes this driver as ultra small, thin, and lightweight, with a screwless end cap design. The housing uses V0 flame-retardant PC materials from SAMSUNG/COVESTRO, and the listed warranty period is 5 years.

Payment & Security

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Model	Power	Voltage	Current	IP Rating
LTECH SE-40-300-1050-W2D 40W 300mA ~ 1050mA CC DALI2 LED Driver	40W	55V	0.3A	IP20	View

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Ltech SE-40-300-1050-W1D 40W 300-1050mA LED Driver - NFC, DALI2 Dimmable

Overview

Features

Specifications

Features

OUTPUT

INPUT

ENVIRONMENT

PROTECTION

SAFETY & EMC

ErP

OTHERS

Technical drawings

Downloads

Datasheet1

FAQ

Payment & Security

Other SE-40 Models

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Ltech SE-40-300-1050-W1D 40W 300-1050mA LED Driver - NFC, DALI2 Dimmable

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