PHINLION Super Bright White Amber Dual Color Switchback 3157 3155 3057 3457 4157 LED Bulbs with Projector for Car Front Turn Signal Parking Lights, Pack of 2

These 3157/4157 switchback LED bulbs only work for dual function/filaments bulbs that have both the parking light and turn signal function in one bulb. 50w 6-ohm load resistor or LED flasher relay may be needed to prevent hyper flash or bulb does not blink

Application: This 3157 switchback LED bulbs has dual function: White for parking light/daytime running driving light; Amber yellow for turn signal light. The turn signal flashes "amber-off-amber-off" instead of "amber-white-amber-white" (most switchback bulb on the market flash amber-white-amber-white) which makes it more visible in any weather condition

Extremely Bright: 100 pcs 3014 & 6 pcs 2835 high brightness LED chips per 3157 switchback LED bulb; Working voltage: 10V-30V (fits 12V, 24V vehicles)

Features: No polarity, compatible for both CK and standard socket. Built-in constant current IC for better performance. Wide operating voltage technology, aluminum body for excellent heat dissipation

Warranty: one year warranty. Fits: 3157 3157A 3057 3057NA 3155 3157NA 3357 3457 3457A 3457NA 4057 4114 4157 4157NA etc