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Ltech

Ltech LM-75-12-G2T2 75W 12VDC CV Triac Driver 6.25A

SKU LM-75-12-G2T2
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Overview

LM-75-12-G2T2 is the 12Vdc output model of this series: typical efficiency 87%.

Leading edge (Triac), Trailing edge (ELV) phase-cut and Push DIM/CCT. Achieve the exemption level.

Features

  • With soft-on and fade in function, makes the human vision more comfortable.
  • 2 independently SELV constant voltage output channels.
  • Constant power design, adjust brightness and color temperature synchronously.
  • Dimming range: 0~100%, LED start at 0.1% possible.
  • 0-100% flicker-free, High Frequency Exemption
  • High Efficient driver: efficiency 88%,PF>0.98, THD<6%
  • Innovative thermal management technology, intelligent power life protection.
  • Over load / Over temp. / Short circuit / Over voltage protection, recover automatically.
  • Suitable for internal lights application for Ⅰ/Ⅱ/Ⅲ.
  • 5 years warranty (Rubycon capacitor).

Specifications

LM-75-12-G2T2Specifications from the official datasheetDownload datasheet PDF

OUTPUT

Output voltage
12Vdc
Output voltage range
12Vdc ± 0.5Vdc
Output current
Max. 6.25A
Output power
Max. 75W
Output power range
0~75W
Strobe level
High frequency exemption level.
Dimming range
0~100%, dimming depth: Max. 0.1%
Overload power limitation
≥102%
Ripple & Noise
≤150mV
PWM frequency
3600Hz

INPUT

Dimming interface
Leading edge (Triac), Trailing edge (ELV) phase-cut and Push DIM/CCT.
Input voltage
220-240Vac
Frequency
50/60Hz
Input current
230Vac≤0.4A
Power factor
PF>0.98/230Vac , at full load
THD
230Vac@THD＜6%, at full load
Efficiency (typ.)
87%
Inrush current(typ.)
Cold start 30A at 230Vac
Control surge capability
L-N: 2kV
Leakage current
Max. 0.5mA

ENVIRONMENT

Working temperature
ta: -20 ~ 50°C tc: 90°C
Working humidity
20 ~ 95%RH, non-condensing
Storage temp., humidity
-40°C ~ 80°C, 10~95%RH
Temp. coefficient
±0.03%/°C(0-50°C)
Vibration
10~500Hz, 2G 12min./1cycle, period for 72min. each along X, Y, Z axes.

PROTECTION

Over-heat protection
Intelligently adjusting or turning off the output current if the PCB temperature ≥110°C, auto recovers.
Over load protection
Shut down the output when current load≥102%, auto recovers.
Short circuit protection
Shut down automatically if short circuit occurs, auto recovers.
Over voltage protection
Shut down the output when non-load voltage ≥13V, re-power on to recover after fault condition is removed.

SAFETY & EMC

Withstand voltage
I/P-O/P: 3750Vac
Isolation resistance
I/P-O/P: 100MΩ/500VDC/25°C/70%RH
Safety standards
IEC/EN61347-1, IEC/EN61347-2-13
EMC emission
EN55015, EN61000-3-2 Class C, IEC61000-3-3
EMC immunity
EN61000-4-2,3,4,5,6,8,11, EN61547
Strobe test standard
IEEE 1789

OTHERS

Dimension
293×43×30mm(L×W×H)
Packing
296×44×33mm(L×W×H)
Weight(G.W.)
350g±10g

Certifications & ratings

Dimming Dept
0.1%
Marked features
Triac/ELV Push DIM, Digital Dimming, Over Temp. Protection

Technical drawings

LM-75-12-G2T2 Dimensions
Dimensions
LM-75-12-G2T2 Wiring Diagram
Wiring Diagram
LM-75-12-G2T2 Push DIM/CCT Connection
Push DIM/CCT Connection
LM-75-12-G2T2 Push Dimming
Push Dimming
LM-75-12-G2T2 Application of protective cover
Application of protective cover
LM-75-12-G2T2 Relationship diagrams
Relationship diagrams
LM-75-12-G2T2 Efficiency vs Load
Efficiency vs Load
LM-75-12-G2T2 Flicker Test Form
Flicker Test Form

Downloads

FAQ

What is the Ltech LM-75-12-G2T2 designed for?

The LM-75-12-G2T2 is a 75W constant-voltage LED driver for 12VDC lighting loads. It is intended for internal lighting applications and is positioned for projects that need phase-cut dimming with synchronized brightness and color temperature control.

What dimming methods does the LM-75-12-G2T2 support?

This model supports leading-edge (Triac) dimming, trailing-edge (ELV) phase-cut dimming, and Push DIM/CCT control. It also includes soft-on and fade-in behavior, with a stated dimming range of 0-100% and low-level start capability down to 0.1%.

What are the main electrical ratings of the LM-75-12-G2T2?

The LM-75-12-G2T2 is rated for 75W output at 12VDC with a rated current of 6.25A. Ltech lists efficiency at 87%, power factor above 0.98, and THD below 6% for this model.

Is the LM-75-12-G2T2 suitable for tunable white LED lighting?

Yes, this driver is built with 2 independently SELV constant-voltage output channels and supports synchronized brightness and color temperature adjustment. That makes it a fit for 12V tunable white lighting systems where dimming and CCT control are both required.

How does the LM-75-12-G2T2 differ from a standard non-dimming 12V LED driver?

The key difference is control capability: this model combines 12V constant-voltage output with Triac/ELV phase-cut dimming and Push DIM/CCT support. It also provides dual independent output channels for synchronized dimming and color temperature control, which a basic fixed-output driver does not offer.

What operating conditions and protections does the LM-75-12-G2T2 offer?

Ltech rates this model for operation from -20°C to 50°C. It includes overload, over-temperature, short-circuit, and over-voltage protection with automatic recovery.

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Other LM-75 Models

2 other models
ModelPowerVoltageCurrentIP Rating
Ltech LM-75-24-G1T2 75W 24VDC CV Triac Driver 3.125A 75W 24V 3.125A IP20 View
Ltech LM-75-12-G1T2 75W 12VDC CV Triac Driver 6.25A 75W 12V 6.25A IP20 View
View all 38 Ltech Triac Series models
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Ltech LM-75-12-G2T2 75W 12VDC CV Triac Driver 6.25A
Ltech

Ltech LM-75-12-G2T2 75W 12VDC CV Triac Driver 6.25A

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LM-75-12-G2T2 is the 12Vdc output model of this series: typical efficiency 87%.

Leading edge (Triac), Trailing edge (ELV) phase-cut and Push DIM/CCT. Achieve the exemption level.

Features

  • With soft-on and fade in function, makes the human vision more comfortable.
  • 2 independently SELV constant voltage output channels.
  • Constant power design, adjust brightness and color temperature synchronously.
  • Dimming range: 0~100%, LED start at 0.1% possible.
  • 0-100% flicker-free, High Frequency Exemption
  • High Efficient driver: efficiency 88%,PF>0.98, THD<6%
  • Innovative thermal management technology, intelligent power life protection.
  • Over load / Over temp. / Short circuit / Over voltage protection, recover automatically.
  • Suitable for internal lights application for Ⅰ/Ⅱ/Ⅲ.
  • 5 years warranty (Rubycon capacitor).
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