Outer Diameter: 5.6 inch; Inner Diameter: 4 inch; LED Quantity: 16 LED (Inner White 6 LED + Outer Red 10 LED); IP67 submersible waterproof light fixture; Recessed mount with built-in flange; Drill hole: 3.8 inch;Round red/White light serves as brake light, Stop light, tail light, Running Light, Backup Light and Reverse Light: Outer Ring of LEDs comes with dual modes(high low Beam) and function as Stop Tail Brake Running lights; Center Clear/White LED act as Backup and Reverse Light;Easy Installation with High Quality Durable Round Stainless Steel Ring, HARDWIRED with 4 WIRES for Ground, Reverse, Brake Light and Running Light: Black Wire - Ground / Red Wire - Brake Light / Yellow Wire - Backup Light/Reverse Light / White Wire - Running Light/Tail light;Bright lights with durable feature,great for replacing your old LED tail lights or side; Each individual diode has a round pearl-shaped reflector giving the light a clean,custom look and superior light distribution;Universal compatibility for vehicles equipped with DC 12-24 V Power Source supply, compatible with any Truck, RV, Trailers, Trucks,Camper, UTEs, UTVs, Boat, Caravans etc.Description:LED Quantity: 16 LED (Inner White 6 LED + Outer Red 10 LED)Combination Light: 10 LED Red Outer Ring for Stop, Turn, Tail Light Functions and 6 LED White Inner Circle for Reverse Lights.Low power consumption,Long Lasting; Water Resistant,Shockproof.Bright lights with durable feature,great for replacing your old LED tail lights or side.Each individual diode has a round pearl-shaped reflector giving the light a clean,custom look and superior light distribution.Fits the following vehicles:For Heavy duty trucks tractors like Peterbilt, freightliner, international, Kenworth, Mack, Western Star,Volvo,Paccar etc.Colour:Silver + redLED Color: Red,WhiteMaterial:plasticSize:Diameter: 14.22cmPackage Contents:4 * LED Trailer Tail LightsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.