SR Series

SR312 : 350mA Low Voltage Constant Current LED Driver

Photo Gallery

Product Overview

Magnitude SR ™ SERIES 12V Low Voltage drivers have an input voltage range of 9V – 15V and are available in versions outputting 350mA, 450mA or 700mA. In addition, we offer custom calibrations to meet your needs. Because of their advanced design, they output precise current and can be used in a wide range of fixtures powering a wide range of LEDs and is compatible with existing systems fitted with magnetic transformers.

Magnitude SR ™ SERIES are dimmable with any standard TRIAC in-line dimmer. Their fully encapsulated form-factors are small enough for any size OEM fixture.
They are ideal for Landscape Lighting, Path Lighting, Area Lighting and Spotlights Packaged in an anodized aluminum case, they are designed for outdoor and wet environments.

Click here to learn more about this driver


  • Dimmable with any standard MLV TRIAC Dimmer
  • AC or DC 12V Input
  • Wide voltage range 2-4 LEDs in series
  • Super compact Aluminum case
  • Withstands dry and damp conditions
  • IP67
  • Class 2 when connected to a class 2 Isolating Power Source / Transformer

Driver Schematic

Driver Specifications

Output Power 4.9 W Max
Output Current 350 mA
# LED (typical) 2-4 (6-12V)
Input Voltage (nominal) 12 V AC / 12 V DC
Input Voltage Min 9.5 V AC / DC
Input Voltage Max 15 V AC / DC
Operation Temp. -30°c +70°c
Dimensions 0.98 x 0.98 x 0.74 in.
Constant Current Accuracy ± 10%
Efficiency (Typical) 83%
Working Humidity 20~95%
Storage Temp. -40~ +90°C
Max Case Operation Temp. 70°C
Wire Gauge (in \ out) 18AWG \ 18AWG
Safety Standards UL8750
EMC Immunity \ Emission Compliance to FCC Part 15B