FBULWSEC 12V RV LED Dimmer Toggle Switch — 60W High-Side DC Dimmer for LED, Halogen & Incandescent

FBULWSEC 12V RV LED Dimmer Toggle Switch is a compact high-side DC dimmer that lets you smoothly dim dimmable LEDs, halogen and incandescent lights up to 60W in RVs, boats, trucks and other 12V systems.

This high-side toggle dimmer is designed for mobile and compact installations where reliable, low-voltage light control matters. The unit combines a retro-styled toggle with modern dimming circuitry, fits small cutouts, and reduces heat and battery draw by lowering lamp output. It’s built from a durable plastic composite with rounded edges and mounts using common hole spacing so it integrates into vehicle panels, trailers, and marine cabins.

How does the dimmer work with LED and other bulbs?

The FBULWSEC dimmer is a 12V DC high-side device that adjusts voltage delivered to dimmable LEDs, incandescent and halogen lamps to change brightness smoothly. It supports resistive and many electronic LED loads up to 60 watts (about 4.2 amps), but performance depends on the bulb’s driver compatibility.

• Rated up to 60W total load (4.2A) at 12V DC.
• Works with most dimmable LED drivers, plus incandescent and halogen bulbs.
• High-side switching design for stable operation on positive feed applications.
• May not fully dim some non-compatible LED fixtures—test before permanent installation.

How easy is it to install in an RV, boat or truck dash?

Installation is straightforward for anyone comfortable with basic 12V wiring and panel cutouts. The switch body dimensions and cutout size match common panel openings, and mounting holes align with typical screw spacing used in vehicle interiors.

• Mounting hole spacing: 1-1/4" horizontal x 1-7/8" vertical for secure attachment.
• Overall switch size: 3" x 2-7/8" x 1-1/2"; cutout: 2-1/4" x 1-3/4" x 3/4".
• Simple three-wire hookup: positive in, switched positive out, and ground/negative common.
• Fits tight spaces in control panels, consoles and switch clusters.

Will this dimmer hold up in mobile and marine environments?

The unit is constructed from durable plastic composite with rounded edges to resist wear and integrate cleanly into interiors. While not fully waterproof, it’s suitable for protected locations inside RVs, trucks and cabins where it won’t be directly exposed to water.

• Sturdy plastic composite housing for everyday mobile use.
• Rounded edge design reduces chafing and looks finished in dashboards.
• Intended for protected interior mounting, not exposed exterior mounting.
• Ideal for trailers, motorhomes, boats and cab zones with limited space.

What happens if a product doesn’t fit my setup?

FBULWSEC offers support and a replacement or return option if the dimmer doesn’t meet your needs or compatibility requirements. Contact the seller for assistance rather than leaving an unresolved installation issue.

• Customer support available for fit or function concerns.
• Replacement or return assistance offered when product is unsuitable.
• Recommend testing with your existing lights before final installation.
• Keep original packaging and specs for faster support.

Who is this for? If you’re outfitting or upgrading interior lighting on an RV, travel trailer, campervan conversion, boat cabin, truck sleeper or utility trailer and need a small, easy-to-mount 12V dimmer, this FBULWSEC toggle dimmer is a practical choice. It’s best for users who have dimmable LED fixtures or traditional incandescent/halogen lamps and who plan to install the control in a protected interior panel. Technically minded owners, DIY converters and service technicians will appreciate the clear mounting dimensions and straightforward wiring; verify LED driver compatibility for the smoothest dimming performance.