Partsam 12" Amber Slim LED Light Bar — 12-inch Trailer Marker & Turn Signal, Dual-Brightness, Waterproof

Partsam 12" amber slim LED light bar is a sealed, dual-brightness identification and turn-signal fixture designed to mount anywhere on trucks, trailers, RVs or boats for brighter, low-profile visibility.

This compact 12-inch light bar combines high-output 2835 SMD LEDs, a chrome bezel and a clear lens into a waterproof, surface-mount unit that replaces bulky markers or adds an extra turn/identification signal where space is limited. It runs on 9–16V, offers two brightness levels for multifunction use, and is built to withstand road spray and occasional submersion thanks to a sonically sealed housing.

How does this light bar improve visibility on my trailer?

The Partsam bar uses 15 high-power 2835 LEDs that produce a combined output of about 460 lumens, making it significantly brighter than standard marker lights. Its amber color is DOT-appropriate for front/marker/identification and turn applications, helping other drivers notice your vehicle sooner.

• 15 x 2835 SMD LEDs delivering 460 lumens total
• Clear lens with chrome bezel increases reflective visibility
• Dual-brightness wiring lets you use low or high output
• Amber color meets common marker/turn expectations

Can I mount this LED bar in tight or angled spaces?

Yes — the bar’s slim, low-profile dimensions (11-13/16" L × 9/16" W × 9/16" H) and multiple mounting-hole spacing make it easy to install horizontally, vertically or at an angle. Its design fits narrow fascia, ladder racks, tongue areas and other confined locations.

• Slim 9/16" thick profile for tight-fit installations
• Mounting-hole spacing ~11 7/16" for standard placement
• Surface-mount style for quick screw-in installation
• Compatible with both horizontal and vertical orientations

Is this light bar weatherproof and suitable for boat trailers?

The housing and clear lens are sonically sealed into a single unit, preventing water intrusion and protecting the LEDs and circuit board. The sealed construction makes it robust for road spray and occasional submersion scenarios like launching or hauling a boat.

• Sonically sealed housing prevents water entry
• Durable lens resists road debris and salt exposure
• Designed for 9–16V systems common on trailers and trucks
• Chrome bezel provides corrosion-resistant exterior finish

How do I wire and use the dual-brightness function?

Wiring is straightforward: white is ground, red supplies the high-brightness function, and gray provides the low-brightness output. You can use one input for a single-function marker or two separate inputs to provide both parking/marker and brighter turn/emergency signals.

• White = ground; Red = high brightness; Gray = low brightness
• Single-wire hookup for simple marker use, or dual input for multifunction
• Works with standard 12V systems and accepts 9–16V range
• Can replace existing 12" markers or add auxiliary signals

Who is this for: The Partsam 12" amber slim LED light bar is ideal for fleet operators, trailer owners, RV enthusiasts and boat haulers who need a compact, high-visibility marker or turn light that fits in narrow spaces. It suits anyone wanting an easy-to-install, DOT-friendly upgrade to stock lighting — especially where waterproofing, brightness and a polished chrome look matter.