The switch is where you plug it in, the pattern switch is on the back of the light itself, feels decent and all the lights work, I bought it for side by side which we I use it for safety and it works fine after a few nights, it can also be seen during the day, although not very well due to the glare on the windshield. I will buy a few more.
12-LED Ultra Slim Surface Mount Flashing Strobe Lights For Truck Car Vehicle Emergency Beacon Hazard Warning - 8Pcs Sync Feature LED Mini Grille Light Head (Red/Blue)
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
Stay Safe On The Road With ASPL Emergency Strobe Beacon Visor Lights β 26 Flash Patterns, Split Mount, And Extendable Bracket (Red/White/Red/White)
28 Review
Keep Safe On The Road With The Nilight Traffic Advisor Emergency Strobe Light Bar - 17 Inch, 32 LED, 23 Flash Patterns, Cigar Lighter, And 2 Year Warranty
44 Review
1999-2002 Chevy Silverado/Tahoe Headlight Assembly - 2 Year Warranty!
27 Review
Black Bezel Halogen Type LED Halo Ring Eye Lid Projector Headlights For 2006-2008 BMW E90 3 Series 4 Door Sedan
32 Review
Enhanced 3Rd Brake Light For Ford F250 F350 Super Duty Trucks: LED Tail Cab Cargo Lights & Stop Light Compatible With F450 F550 And 1995-2003 Ranger Models
30 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