1. LED lights, prolong the service life of the lights;2. Easy to install, with high-quality rubber sleeve, not easy to break3. Waterproof + shockproof + dustproof4. Function: Installed on the top or taillights, on the side front and rear landing gear, to increase visibility and enhance road safety.5. Scope of application: universally applicable to all vehicles with 12V DC trailer clearance, vans, caravans, trucks, pickup trucks, etc.6. Installation position: installed on the side front and rear landing gear, top or taillights, used as gaps, side markings, turn signal lights or trailer lights7. Wiring mode: white wire positive, black wire grounded8. Color temperature: 6000K9. Voltage: 12V10. Protection level: IP6711. Number of LEDs: 312. Material: PP plastic

http://olla.gr/a5010-red-light-10-in-1-truck-trailer-led-round-side-marker-lamp/