UL CV 30W-400W Ultra-Mini Triac 0-10V 5-in-1 Linear Built-in Junction Box LED Power Supply

Product Introduction

The SCPOWER MVG-DW-JL Series is a 30W-400W constant voltage dimmable LED power supply featuring a ultra-mini linear housing with an integrated junction box. Measuring just 38.5 × 32.5mm in cross-section, it fits easily into linear fixtures, ceiling slots and narrow installation spaces. Available in 12V, 24V and 48V versions across nine power levels, it provides flexible options for different LED lighting loads.

The series integrates 5-in-1 dimming compatibility, supporting TRIAC/MLV, ELV, 0-10V, 1-10V, potentiometer and 10V PWM control options. With 120-277VAC input, active PFC, efficiency up to 91.7%, 20kHz PWM output and built-in short-circuit, overload and over-temperature protection, it delivers flexible dimming and reliable performance for residential and commercial lighting applications.

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. Linear Built-in Junction Box

• 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

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

Thanks to its compact size, it integrates directly into:

Furniture & Cabinetry: custom furniture lighting kits, desk and shelving integration.

Display & Shelving: exhibition pedestal lighting, window display mini spots.

Cove & Ceiling Details: corridor niche lighting, indirect light-line details.

Custom Slim Fixtures: compact sign and display units, minimalist architectural details.

FAQ

Q1: What does "linear built-in junction box" mean, and why does it matter?

The driver is built in a long, slim body with the junction box formed as part of the housing. Wiring is closed inside the driver, so there is no separate wiring box to mount and no additional enclosure to fit beside the fixture — which is what usually runs out of room in a cove, a light line or the back of a cabinet.

Q2: How do I choose between the 30W and 400W models, and how long is each?

Power levels are 30W, 45W, 60W, 96W, 180W, 200W, 300W, 360W and 400W in 12V, 24V and 48V. Body length steps with the power: 187mm (30W/45W), 197mm (60W), 207mm (96W), 242mm (180W/200W), 279mm (300W) and 335mm (360W/400W), all 38.5 × 32.5mm in section. Check both the load and the length available in the fixture.

Q3: What does "5-in-1 dimming" mean?

One driver accepts five dimming methods: forward phase (TRIAC and MLV), reverse phase (ELV), 0-10V, 1-10V, and 10V PWM or potentiometer. Use the method that matches the control already specified on the project — no separate dimming module is required.

Q4: How smooth is the dimming, and what is the minimum load?

Dimming range is 0-100% with 0.1% dimming depth, using 20kHz PWM output and a gamma 2.2 dimming curve, so the output is flicker-free and silent. Minimum load is 15% of rated output — keep the connected load between 15% and 100% for stable dimming.

Q5: What are the efficiency and protection features?

Efficiency reaches up to 91.7% with a built-in active PFC stage, and the driver includes short circuit, overload and over-temperature protection. Cooling is by free air convection with no fan, so there is no fan noise or fan failure mode — only normal ventilation clearance is needed.

Q6: What installation environment is it rated for?

The series is rated for dry and damp locations, and the integrated junction box closes the wiring compartment. For wet-location projects, contact us to confirm the IP rating of the specific model before specifying.

Q7: Which output voltage should I choose for a long run?

Use 12V only for short runs close to the driver. For long light lines and higher total load per cable, use 24V or 48V — the higher voltage keeps voltage drop over the run small, so the far end of the line matches the near end. Send us the run length, strip or module wattage per metre and the driver location, and we will confirm the voltage and the model.

Q8: What certifications, warranty and customization are offered?

UL, FCC, Class 2, Class P, SELV, RoHS and REACH, with a 5-year warranty. OEM/ODM customization of electrical specifications, wiring, labeling and face plate is available. Samples can be supplied for compatibility and performance testing before bulk orders, and MOQ varies by model and customization — contact us with your load, quantity and installation environment for MOQ, pricing and a model recommendation.