These lights have 5 cables. Red, black, yellow, white and gray. Red is positive, black is negative/ground, yellow is for pattern change. Gray + White is for syncing (which most standalone lights don't usually have. So they connect the gray on one light to the white on the other to sync their flash patterns. Make sure you connect them before powering up You can continue chain for every 4 bulbs (or more if compatible. Just keep painting the wires grey+white+grey+white. This also includes rubber pads, screws and nuts/bolts for fixing. Very good suggestion for 4 bulbs Curious to see how it holds up to the weather over time.
LAMPHUS SolarBlast 36" Amber LED Traffic Advisor Light Bar [SBTA84-AM] [TA Controller] [19 Flash Modes] [IP 67 Waterproof] Directional Yellow Flashing Emergency Safety Light Bar For Trucks Vehicles
25 Review
Upgraded ASPL Visor Light Bar - 15 LED, 29 Flash Patterns, Split Mount For Upper Windshield - Emergency Strobe And Hazard Warning Light With Take-Down Feature - Purple/White
36 Review
SMALLFATW Portable Emergency Light 15” 12 LED 9 Flashing Modes 4 Powerful Suction Cups, Super Bright Mini Visor Strobe Light Bar, Dash Windshield Warning Light For Vehicles Car Truck, Red&White 1PCS
38 Review
SAE Class 1 NanoFlare 4W Amber LED Strobe Light With 72 Flash Modes For Emergency Warning On Trucks And Vehicles - Sync-Able And Surface-Mounted Yellow Amber Grille Light For Police
24 Review
1999-2002 Chevy Silverado/Tahoe Headlight Assembly - 2 Year Warranty!
27 Review
Pack Of 2 TMH 6 Inch Oval White LED Lights For Truck Trailer With Reverse Lamp, Turn Signal, Side Marker And Tail Functions - Surface Mount, Ideal For Trailers, Buses And Vehicles, 12V DC
25 Review
XBEEK LED Front Fender Side Marker Light Turn Signal Lamp Compatible With Jeep 2018-2022 Wrangler JL JLU And 2020-2022 Gladiator JT Truck
23 Review
LED Fog Lights Passing Lamps For Dodge Ram 1500/2500/3500 Pickups 2002-2009 & Durango 2004-2006, Upgraded XPCTD Black Truck Fog Lights
38 Review