Partsam 4-Inch Round LED Tail Lights Red/White — 19-LED Dual-Color, IP65, 3-Prong Plug

Partsam's 2-piece 4-inch dual-color LED tail light kit combines red stop/turn/tail illumination with a white reverse lamp in one compact, weather-resistant housing.

This kit includes two 4-inch round LED lights, each using 19 diodes to deliver bright red signaling and a clear white backup beam. Designed for universal 12V vehicle use, the lights come with rubber grommets and standard three-prong offset wire pigtails plus an extra bullet-style plug for the white reverse circuit. The parts are engineered for heavy-duty road use on trucks, trailers, RVs, and utility vehicles and are IP65-rated for splash and dust resistance (not submersible).

How do these lights manage both red signaling and white reverse in one unit?

Each lamp uses a 19-diode array that’s wired to produce two distinct colors depending on which circuit is powered. The three-prong pigtail handles tail and brake/turn functions, while a separate bullet plug powers the white reverse LEDs and overrides the red when activated.

• Dual-color 19-LED array for red and white outputs
• Standard three-prong wiring for tail and brake/turn
• Separate male bullet plug on yellow wire for reverse light
• White reverse overrides red for clear visibility when reversing

What are the physical dimensions and how do I fit them into my vehicle?

The overall lamp measures approximately 5.3 inches in diameter with a 1.2-inch profile, designed to sit into common 4.7-inch round rubber grommets. Installation uses the included rubber grommets and the standard three-prong offset pigtail, so most trucks and trailers can accept these with minimal modification.

• Overall diameter 5.3" and height 1.2"
• Fits ~4.7" standard round grommets
• Included rubber grommets for a snug, sealed fit
• Pigtails simplify plug-and-play installation on 12V systems

How durable and weatherproof are the Partsam LED lights?

These lamps carry an IP65 rating, protecting against dust and low-pressure water jets—suitable for road spray and most weather conditions. They are not rated for continuous submersion, so avoid mounting below waterline or where they will be fully underwater.

• IP65-rated housing for dust and splash resistance
• Durable lens and sealed grommet mounting to reduce moisture ingress
• Robust LED chips designed for automotive vibration and shock
• Operates on standard 12V DC automotive electrical systems

What wiring colors and functions should I expect when hooking them up?

The wiring follows common automotive color conventions to make connection straightforward: white is ground, black is low-brightness tail, red is high-brightness brake/turn, and yellow powers the reverse LEDs. The extra bullet plug allows the reverse circuit to override the red output when engaged.

• White = ground
• Black = tail/low-brightness
• Red = brake/turn/high-brightness
• Yellow = reverse light (bullet-style plug)

Who this is for: This Partsam dual-color 4" LED tail and backup light kit is aimed at owners and technicians who need compact, combined stop/turn/tail and reverse lighting for trucks, trailers, RVs, or heavy-duty equipment. It's suited for fleet maintenance, DIY trailer retrofits, and anyone replacing worn incandescent fixtures with a brighter, lower-power LED option. If you need a sealed, easy-to-install light that reduces wiring complexity while improving rear visibility, this kit offers a practical solution.