ITEM NAME:4Pcs 20 LED Strobe Lights Emergency Flashing Warning Beacon Amber/White 12V D1S9 4Pcs 20 LED Strobe Lights Emergency Flashing Warning Beacon Amber/White 12V D1S9 Built-in heat sink, Compact and light weight, easy to use Enhance driving safety, avoid traffic accident Application: Signal light, Daytime running light, Foglight etc. Colour: Black material: metal 20pcs High Intensity LED each Light. 9-30V DC(12V&24V) working voltage. Super slim design, flush mount style with protection pad. 18 different strobe/flash patterns. Including steady-burning pattern. Last pattern memory recall function. IP66 waterproof and dust-proof. Over 50,000 hours lifetime. How to Connect Red for Positive Black for Negative Yellow for Flash Pattern Switch(Touch Positive wire to switch patterns) Package Includes 4pcs*Car Truck Light