1.Partsam 20Pack Smoke, round, mini-light,Smoked/Amber. It can be function as clearance, side marker, identification light, turn signal light or trailer light etc. Great replacement Part for incandescent lights

2.150 lumen each light with 1 PC High Quality SMD LED Inside of the Lamp Offer Extreme Bright light. Waterproof PC Lens,Shock Proof ,Dust Proof,Rubber Cover Sealed Light.

3.2-Wire design including lead and ground wires ensures for mounting to almost all surfaces; Black wire for ground and the other positive

4."3/4" holes needs to be drilled to accomadate the grommet & light; Easy to install with FREE High Quality Rubber Cover, No crack forever; Universal All Cars Trailer Clearance Bus Van Caravan Boat Lorry Truck. Easy to install in all locations : Side Front Rear Undercarriage As Exterior Safety Signal Light At Night.

5.resistors are not built in; Just wire them direct. The only time you need a resistor is when their used as a turn signal or flasher. You can overcome using a resistor if you change out your vehicle flasher.