4W 12V car led trailer light bulbs, boat navigation led bulb

4 watt S25 LED Braking light bulbs, boat trailer light bulbs, trailer light bulbs, boat navigation light bulbs. 
S25 LED bulb for cars, 12V car ledbulb, LED turn signal and back-up light bulb for both motorbikes and cars. These are SUPER EASY to install. There is no modification needed at all. Since LED lamp has + and - terminals, so if there is no lighting after inserting it into socket, just simply change the terminal oppositely.
Special Note: If you are using these LED bulbs for turn signal lights, you might need to add a pair load resistors to prevent hyper flashing or malfunction problem. 

Consume wattage: 4 Watt
AS 20 watt halogen bulb replacement
Input voltage: 12V DC
LEDs: 12 pcs 3030 SMD LED (Max 0.5 watt each LED)
Colors: RED, Yellow, Cool White option, Please choose from below listed
Dimension: 20mm diameter, MOL long base on the base. 

Lifespan: 50000 hours
Vibration resistant
Immediate response on/off