I bought this to use as an ebike rear light. I'll probably change it so that it doesn't focus into the beam as it's blindingly bright when aimed at you. I ran it on a battery charged to 58.8 volts, which as I said draws 20-30 watts. I like that it can be used over a wide voltage range. It can run on a 9V battery, but will begin to dim if operated below its rated voltage or if operated from a battery with insufficient amperage.
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
Emergency LED Traffic Advisor Strobe Light Bar - 32 LED, 26 Flash Patterns, 2X 16.8 Inches - Ideal For Interior Safety, Warning And Signalling (White)
33 Review
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
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
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
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
1999-2002 Chevy Silverado/Tahoe Headlight Assembly - 2 Year Warranty!
27 Review