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Ltech SE-20-100-700-W2D 20W 100-700mA LED Driver - NFC, DALI2, Tunable White

0.01% dimming depthoutput current adjustable with 1mA stepsuitable for class I/II/III indoor light fixtures
SKU SE-20-100-700-W2D
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Overview

SE-20-100-700-W2D is the 9-42Vdc output model of this series: typical efficiency 84%@700mA(at full load), 87%@500mA (at full load).

Intelligent Tunable White LED Driver (Constant Current)

Features

  • Housing made from SAMSUNG/COVESTRO's V0 flame retardant PC materials.
  • Ultra small, thin and lightweight, screwless end cap.
  • Change the dimming interface, output current, DALI address and other parameters on the NFC programmer or via the App, and sync the parameters to the driver.
  • Set the DALI group, scene in the advanced DALI template.
  • Set the output current down to 1mA.
  • DALI bus standard IEC62386-101, 102, 209.
  • Class 2 LED driver, Safety Extra Low Voltage (SELV).
  • Soft-on and fade-in dimming function enhances your visual comfort.
  • T-PWM™ dimming technology allows quality and high-end lighting.
  • The whole dimming process is flicker-free with high frequency exemption level.
  • Comply with the EU’s ErP Directive, networked standby<0.5W.
  • Multiple current levels, wide voltage range, suitable for LEDs with different power
  • 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/Ⅲ indoor light fixtures.
  • Normal service life can reach 100,000 hours.
  • 5-year warranty (Rubycon capacitor).

Specifications

SE-20-100-700-W2DSpecifications from the official datasheetDownload datasheet PDF

Features

Output Type
Constant current
Dimming Interface
DALI-2 DT6/DT8
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
≤48Vdc
Output Current Range
100-700mA
Output Power Range
0.9W~20W
Dimming Range
0~100% :0.01%
LF Current Ripple
<3%(Maximum current for non dimming state)
Current Accuracy
±5%
PWM Frequency
≤3600Hz

INPUT

DC Voltage Range
120-300Vdc
AC Voltage Range
100-240Vac
Input Voltage
115Vac/230Vac
Frequency
50/60Hz
Input Current
≤0.25A/115Vac,≤0.13A/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.)
84%@700mA(at full load), 87%@500mA (at full load)
Inrush Current
Cold start 15A (Test twidth=102us tested under 50% Ipeak)/230Vac
Anti Surge
L-N:2KV
Leakage Current
Max.0.24mA

ENVIRONMENT

Working Temperature
ta:-20~50°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
Withstand Voltage
I/P-O/P: 3750Vac
Insulation Resistance
I/P-O/P: 100MΩ/500VDC/25°C/70%RH

SAFETY & EMC

Safety Standards
ParameterStandardTest Level
CCCChinaGB19510.1, GB19510.14
TUVGermanyEN61347-1, EN61347-2-13, EN62493
CBCB Member StatesIEC61347-1, IEC61347-2-13
CEEuropean UnionEN61347-1, EN61347-2-13, EN62384
KCKoreaKC61347-1, KC61347-2-13
EACRussiaIEC61347-1, IEC61347-2-13
RCMAustraliaAS 61347-1, AS 61347-2-13
ENECEuropeEN61347-1, EN61347-2-13, EN62384
UKCABritainBS EN 61347-1, BS EN 61347-2-13, BS EN 62493
BISIndiaIS 15885 (PART 2/SEC 13)
CULCanadaCSA C22.2 NO.250.13
ULAmericaUL 8750
EMC Emission
ParameterStandardTest Level
CCCChinaGB/T17743, GB17625.1
CEEuropean UnionEN55015, EN61000-3-2, EN61000-3-3, EN61547
KCKoreaKSC 9815, KSC 9547
EACRussiaIEC62493, IEC61547, EH55015
RCMAustraliaEN55015, EN61000-3-2, EN61000-3-3, EN61547
UKCABritainBS EN IEC 55015, BS EN IEC 61000-3-2, BS EN IEC 61000-3-3, BS EN 61547
CULCanadaICES-005
ULAmericaFCC PART 15B
EMC Immunity
EN61000-4-2,3,4,5,6,8,11, EN61547

ErP

Power Consumption Standby power consumption
No standby mode
Power Consumption Networked standby
≤0.5W (After shutdown by command)
Power Consumption No-load power consumption
≤0.5W (When the lamp is not connected)
Flicker/Stroboscopic Effect IEEE 1789
Meet IEEE 1789 standard/High frequency exemption level
Flicker/Stroboscopic Effect CIE SVM
Pst LM≤1.0,SVM≤0.4
DF Phase factor
0.9

OTHERS

Weight(N.W.)
105g±10g
Dimensions
127×40×23mm(L×W×H)

Certifications & ratings

Marked features
DIM / CT, T-PWM™ Dimming Technology

Technical drawings

SE-20-100-700-W2D Product Size
Product Size
SE-20-100-700-W2D Dimensions (mm)
Dimensions (mm)
SE-20-100-700-W2D Product Size (2)
Product Size (2)
SE-20-100-700-W2D DALI Connection
DALI Connection
SE-20-100-700-W2D DALI Connection (2)
DALI Connection (2)
SE-20-100-700-W2D OutputVoltage(V)
OutputVoltage(V)
SE-20-100-700-W2D Protective Housing Application Diagram
Protective Housing Application Diagram
SE-20-100-700-W2D Installation Precautions
Installation Precautions
SE-20-100-700-W2D BLE Connection SE-20-100-700-W2D
BLE Connection SE-20-100-700-W2D
SE-20-100-700-W2D 4.Write to the driver
4.Write to the driver
SE-20-100-700-W2D 3.Switch the dimming interface
3.Switch the dimming interface
SE-20-100-700-W2D Write/Read on the NFC programmer
Write/Read on the NFC programmer
SE-20-100-700-W2D Advanced DALI template
Advanced DALI template
SE-20-100-700-W2D Advanced DALI template (2)
Advanced DALI template (2)
SE-20-100-700-W2D Relationship Diagrams
Relationship Diagrams
SE-20-100-700-W2D THD VS Load
THD VS Load

Downloads

FAQ

What kind of applications is the Ltech SE-20-100-700-W2D designed for?

This model is a 20W constant-current LED driver intended for professional lighting applications that need DALI-2 control. Its compact, thin housing also makes it suitable for space-constrained fixture designs where a lightweight driver is preferred.

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

The SE-20-100-700-W2D supports DALI-2 dimming, which makes it better suited to projects that need controllable light output rather than simple fixed-output operation. It also supports NFC parameter adjustment, including dimming interface, output current, and DALI address settings.

Can the output current be adjusted on this model?

Yes. Parameters such as output current can be changed using an NFC programmer or app and then synced to the driver. The listed model range is 100-700mA.

Is this driver compatible with DALI-based lighting control systems?

Yes, this driver uses DALI-2 control. That makes it appropriate for projects that require a driver aligned with standard DALI bus protocols.

What are the key electrical specifications of the SE-20-100-700-W2D?

This LED driver is rated at 20W with a listed output voltage range of 9-42Vdc (max 48Vdc). The product data identifies it as a constant-current model in the 100-700mA family.

Is this LED driver suitable for demanding indoor operating conditions?

It is specified for an ambient temperature range of -20°C to 50°C, which supports use across a broad range of indoor commercial lighting environments. The housing is also described as V0 flame-retardant PC material, supporting applications where material safety is a consideration.

What warranty is offered for this model?

The SE-20-100-700-W2D is a professional LED driver designed for commercial and project-based purchasing where longer service life expectations matter.

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Ltech SE-20-100-700-W2D 20W 100-700mA LED Driver - NFC, DALI2, Tunable White
Ltech

Ltech SE-20-100-700-W2D 20W 100-700mA LED Driver - NFC, DALI2, Tunable White

SE-20-100-700-W2D is the 9-42Vdc output model of this series: typical efficiency 84%@700mA(at full load), 87%@500mA (at full load).

Intelligent Tunable White LED Driver (Constant Current)

Features

  • Housing made from SAMSUNG/COVESTRO's V0 flame retardant PC materials.
  • Ultra small, thin and lightweight, screwless end cap.
  • Change the dimming interface, output current, DALI address and other parameters on the NFC programmer or via the App, and sync the parameters to the driver.
  • Set the DALI group, scene in the advanced DALI template.
  • Set the output current down to 1mA.
  • DALI bus standard IEC62386-101, 102, 209.
  • Class 2 LED driver, Safety Extra Low Voltage (SELV).
  • Soft-on and fade-in dimming function enhances your visual comfort.
  • T-PWM™ dimming technology allows quality and high-end lighting.
  • The whole dimming process is flicker-free with high frequency exemption level.
  • Comply with the EU’s ErP Directive, networked standby<0.5W.
  • Multiple current levels, wide voltage range, suitable for LEDs with different power
  • 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/Ⅲ indoor light fixtures.
  • Normal service life can reach 100,000 hours.
  • 5-year warranty (Rubycon capacitor).
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