120-277VAC CV 30W-400W Ultra-Mini Triac 0-10V 5-in-1 Screw-Free Built-in Junction Box LED Power Supply

Product Introduction

The SCPOWER MVG-DW-J Series is a 30W–400W ultra-mini constant voltage dimmable LED power supply featuring an integrated junction box and screw-free terminals for faster, simpler installation. Available in nine power ratings from 30W to 400W, with 12V, 24V and 48V output options, it provides isolated Class 2 / SELV output for a wide range of LED lighting applications. Its integrated wiring design eliminates the need for a separate junction box, making it a practical solution for fixture manufacturers and lighting contractors.

The series supports five-in-one dimming compatibility, including forward-phase TRIAC/MLV, reverse-phase ELV, 0-10V, 1-10V, potentiometer and 10V PWM control options. With 120-277VAC input, active PFC and efficiency up to 91.7%, it delivers 0-100% dimming with 0.1% dimming depth and 20kHz PWM output. Built-in short-circuit, overload and over-temperature protection, together with fanless natural convection cooling, supports reliable operation across residential and commercial lighting projects.

Specification

Features 

• Output: Constant Voltage

• Range: 120-277VAC

• PFC design: Built-in active PFC function

• Efficiency: Up to 91.7%

• Protections: Short circuit / Over load / Over temperature

• Heat dissipation: Cooling by free air convection

• Waterproof performance: For dry, damp,wet

• Dimming function: Phase dimming: work with Forward phase, MLV and Reverse phase, ELV, TRIAC dimmers. 0-10V dimming: 0-10V/1-10V/Potentiometer/10V PWM 4 in 1. Min load Min load is 15%

• Dimming range: PWM: 0-100%

• Dimming depth: PWM: 0.1%

• Others: 20KHZ PWM output with dimming curve is a gamma 2.2 curve Flicker-free

• Application: Suitable for the application of LED lighting

• Warranty: 5 years warranty

• Certificate: UL / FCC / Class P / Class 2 / SELV / ROHS / REACH

Applications

Ideal for 120-277VAC constant voltage LED lighting systems (30W to 400W), the MVG-DW-J Series Dimmable LED Driver delivers flexible dimming via TRIAC, ELV, MLV, 0-10V and potentiometer. The built-in junction box allows quick, code-compliant installation without extra wiring boxes.

Common fixture applications include:

Downlights & Spotlights: recessed LED downlights, adjustable spotlights.

Linear Luminaires: linear pendant and surface-mounted profiles, LED batten and channel lights.

Signage & Light Boxes: channel letters, light boxes and moving signs.

LED Strip Lights: continuous runs of LED strip and tape light, cove and slot strip lighting.

Connecting Diagram

FAQ

Q1: What are the main features of the MVG-DW-J Series?

The MVG-DW-J Series is a 30W–400W constant voltage dimmable LED power supply featuring an integrated junction box and screw-free terminals. Its design simplifies wiring and reduces installation time.

Q2: What power ratings and output voltages are available?

The series offers nine power ratings from 30W to 400W, with 12V, 24V and 48V output options. The 96W models are available in 24V and 48V, with isolated Class 2 / SELV output.

Q3: Which dimming methods does the series support?

It supports five-in-one dimming compatibility, including forward-phase TRIAC/MLV, reverse-phase ELV, 0-10V, 1-10V, potentiometer and 10V PWM control options. The available control method depends on the selected configuration.

Q4: What dimming performance does it provide?

The driver supports 0-100% dimming, 0.1% dimming depth, 20kHz PWM output and a Gamma 2.2 dimming curve. The minimum load is 15% of rated output.

Q5: What are its efficiency and protection features?

With built-in active PFC, efficiency reaches up to 91.7%. The driver also features short-circuit, overload and over-temperature protection, along with fanless natural convection cooling.

Q6: Where can the MVG-DW-J Series be installed?

It is suitable for architectural lighting, integrated fixtures, signage and cove lighting in dry and damp locations. For wet or outdoor applications, contact SCPOWER to confirm a suitable IP-rated model.

Q7: How do I choose the right output voltage and model?

Choose according to the LED load, cable length and installation space. The series offers 12V, 24V and 48V options, with housing dimensions varying by power rating. For long LED strip runs, 24V or 48V may help reduce voltage drop. Our team can assist with model selection based on your project requirements.

Q8: What certifications, warranty and customization services are available?

Depending on the model, certifications and classifications include UL, FCC, Class 2, Class P, SELV, RoHS and REACH. The series comes with a 5-year warranty. SCPOWER also provides OEM/ODM customization and sample testing. Contact us for MOQ and project quotations.