Materials

PETG filament for long-lasting interior durability
Printed with a clean finished face for visible panel use
Rigid structure to support a snug installed fit

What's Included

1 × RV control panel insert for 12V dimmer switch
Printed insert only
Switch and hardware not included unless noted

Designed For

Standard RV and camper switch panel openings
12V dimmer switch conversion or replacement setups
Clean trim appearance around panel cutouts

Shipping

Shipped from Havre de Grace, MD
Typical production time: 3-5 business days
Carefully packed to protect edges and finish

This insert is intended for RV control panels that need a clean opening for a 12V dimmer switch without rough trim or improvised panel work.

Area

What To Check

Why It Matters

Panel Opening

Cutout dimensions, corner shape, and trim depth

Panel openings vary between RV brands and switch modules

If your panel opening or dimmer switch differs from the photos shown here, reach out with a photo and we can help verify fit before you order.

Verify your opening

Check the panel cutout and confirm it matches the insert style shown. Make sure the surrounding trim has enough clearance for the finished face of the insert to sit flat and clean.

Test-fit before wiring

Place the insert into the opening before fully installing the dimmer switch. This makes it easier to confirm edge fit, switch alignment, and overall panel appearance.

Install the dimmer switch

Mount the 12V dimmer switch through the insert according to your switch hardware and panel setup. Tighten only enough to secure the assembly without distorting the printed part.

Confirm a clean finished fit

Once installed, verify that the insert sits flush, the dimmer turns freely, and the finished face covers the panel opening neatly without gaps or rocking.

RV Control Panel Insert – 12V Dimmer Switch