Led Pair Trailer Square Tail Light over 80" & (2) 3/4" Red Side Marker Lights Square LED trailer lights (2) Red 3/4" Side marker lights Right light has 16 LEDs (12 face, 4 side); Left/streetside light has 21 LEDs (12 face, 4 side, 5 bottom) Square trailer lights are each 6" wide x 4-1/2" tall; Side marker lights are each 1.05" diameter x .5" depth, (fits in 3/4" hole) Tail Lights: Three wire connection; Round Lights: Two wire connection Heavy Duty No-Rust Automotive Grade Plastic with Rust-Resistant Metal Fittings