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Compact rectangular 12V 40W LED driver with metal housing and wire leads

Elemental LED

Elemental LED DI-CV-MW12V40W-277 12V 40W Ballast

SKU CH-D98F-7RYSF

A 12V 40W commercial-grade constant voltage driver for low-voltage LED lighting, Class 2 rated and compatible with 120V switches and dimmers

  • Product typeBallasts
  • 12V 40W constant-voltage driver powers low-voltage LED runs
  • Class 2 rating limits output for safer installations
  • Works with 120V switches and low-voltage dimmers
  • Compatible with RGB and DMX control systems
  • Hard-wired design simplifies permanent commercial wiring

Constant Voltage LED Driver

The Elemental LED DI-CV-MW12V40W-277 is a 12V 40W Class 2 ballast built for low-voltage LED installations. It suits installers who need a hard-wired commercial grade driver compatible with 120V switches and low voltage dimmers.

Thermal and Power Characteristics

As a constant voltage driver it delivers a steady 12V output up to 40W without the heat spikes seen in constant current alternatives. The Class 2 rating means normal operation stays within recognised low-power limits for simpler code compliance.

Control Compatibility and Use Cases

The unit pairs with RGB and DMX controls so colour-changing or dimmed scenes work from a single power supply. It is not suited for projects that require constant current regulation or drivers rated above the 40W maximum.

How it compares

Measured against everything we stock in Lamp Ballasts & Drivers, at today’s prices. Recalculated every night.

Price $86.99
Pricier than about 61% of the 265 comparable items (median $61.99).

Specifications

Product
Brand nameDIODE LED
Product typeBallasts

Questions about this item

How do I hard-wire the 120-277 V input to the driver and which step is most often missed?

Connect line, neutral and ground to the driver's input leads inside a listed junction box; the step most often missed is securing the ground wire to the box before closing it.

What component will need replacement first and how can I tell?

The internal electrolytic capacitors degrade over time; flickering output or failure to start after the driver has warmed up signals they need replacement.

At what load does the Class 2 limit restrict continuous operation?

The 40 W Class 2 rating caps sustained output at 40 watts; exceeding this triggers the driver's protection circuit and shuts down the output.

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