Usage Tips:2 Pcs 12v 24v Amber Led Beacon Strobe Emergency Flashing Warning Lamp for Trucks 2 X Amber Led Beacon Strobe Emergency Flashing Light Warning Lamp Truck 12v 24v Car Emergency Warning Flashing Strobe Light Engineering Police LampDC 12-14V strobe flash type, Perfect for Emergency SituationsPerfect for use in Fog, Rainy, Snowy, Mud Wind Season, Usage: Police, fire engine, , street sprinkler, truckSuitable for alarm at a dangerous post in industrial and mineral enterprises, at the watch post, on the top of a vehicle, etcDurable, long lifespan, super brightCar Emergency Warning Flashing Strobe Light Engineering Police LampDC 12-14V strobe flash typePerfect for Emergency SituationsPerfect for use in Fog, Rainy, Snowy, Mud Wind SeasonUsage: Police, fire engine, , street sprinkler, truckSuitable for alarm at a dangerous post in industrial and mineral enterprises, at the watch post, on the top of a vehicle, etcDurable, long lifespan, super brightType: LED Warning LightThe black wire is the positive poleThe voltage of the black wire and the white wire is 12VThe voltage of the black wire and the red wire is 24VMaterial:plasticcolour:YellowPackage Contents:2 x Warning LightOnly the above package content, other products are not included.Note: Light 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.