Intervolt SLD Switchmode Dimmer, 9-33VDC, 16.5A, for dimming one DC lighting circuit with multiple momentary push-button switches.

The Intervolt SLD Switchmode Dimmer contains all the features demanded by the marine, RV and motor coach enthusiast. Designed for dimming DC (filament lamp) lighting circuits, and compatible with some LED products that lack specific built-in dimmer interface electronics. Enclosed in a sleek, thermally-efficient marine-grade housing featuring a heavy duty corrosion resistant terminal block with insulated barriers to prevent shorting. A selectable master/slave switch enables multiple units to be connected in parallel for unlimited power capacity!

These dimmers are controlled by any “normally-open” single pole single throw momentary switches (any brand).

Features of the Intervolt SLD dimmer include:

  • Soft-start function: Prolongs Bulb Filament Life
  • Memory function that records last light-level setting so same brightness is resumed when turned on again
  • Master/slave function that allows either dimmer to act as the master or the remote allowing unlimited power potential
  • Multi Voltage Capable (9-33VDC)
  • Supports unlimited numbers of momentary push-button switches
  • Diagnostic indicator via color code LED (standby mode, load on, short circuit & over temperature warning
  • Protections: transient voltage, short circuit and over temperature
  • Power stacking: unlimited
  • Complete Off.




Housing Finish/Material

Marine grade anodized aluminum with ABS-PC end caps

Certifications & Compliance

EMC – Australian C Tick mark and CE mark

Dimmer Control Interface

Momentary Push-Button


4.73 x 3.15 x 1.58″ (120 x 80 x 40mm)


2 Years

Input Voltage


Power Capacity

12V/200W, 24V/400W

Max Operating Temperature

-25° C to +45° C

Dimming Range

10-98% of input voltage

Standby Current


Electrical Protections

Over-voltage, Over-temperature, Transients, Short circuit

Approximate Ship Weight (lbs)

Weight 1 lbs
Dimensions 4.73 × 3.15 × 1.58 in


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