▼Extremely bright: 16PCS 3030 SMD high brightness chips per bulb, 300% brighter than halogen bulb.▼Easy to use: No-polarity design, for turn signal lights, you may need to add resistors or flash relay to prevent the hyper flash.▼Maximum light output, better heat dissipation and longer lifespan: HD glass lens and 360 degree lighting angle for stronger light penetration, aluminum circuit board for high effective heat dissipation, built in constant current IC for longer lifespan and lower power consumption.▼Fit sockets: 3157 3157A 3157K 3157NA 3157NAK 3157LL 3057 3057LL 3155 3357 3357K 3357LL 3457 3457NA 3457K 3757ALL 4057 4057K 4114 4157 4157LL 4157K 4157NA 4157NAK etc.▼Dual function (Application): Light up xenon white for parking lights or daytime running lights, flash amber for turn signal lights, and the turn signal flashes “amber-off-amber-off”, which makes it easier to see, because most switchback bulbs on the market flash “amber-white-amber-white”. NOTICE: This only replace dual-function stock lights that have front turn signal lights and DRL/parking lights function in one bulb, otherwise, the switchback bulbs will only work in one color or not light up! Product Description Color White/Amber Voltage: 9V-30V Lumen 1600LM/PC Power 3.5W/White, 4W/Amber Current 0.68A Dimensions 2.51*0.85 inch Package Pack of 2 Fit Socket 3157 3157A 3157K 3157NA 3157NAK 3157LL 3057 3057LL 3155 3357 3357K 3357LL 3457 3457NA 3457K 3757ALL 4057 4057K 4114 4157 4157LL 4157K 4157NA 4157NAK etc. Why Choose The AUXLIGHT White/Amber 3157 Switchback LED Turn Signal and DRL/Parking Bulbs? 300% Brighter than Halogen: Each AUXLIGHT upgraded 3157 switchback led bulb equipped 16 pieces 3030 high brightness LED chips, 360 degree lighting output but low consumption.Dual Color Functions: The 3157 switchback led bulbs have dual functions. 6500K Xenon White for DRL or parking lights; 3500K Amber yellow for turn signal lights.30,000 Hrs Lifespan: Heat-resistant Aluminum circuit board for better transfer efficiency, solid alloy body for better heat dissipation and longer lifespan.Much Easier to See: The 3157 turn signal flashes "amber-off-amber-off" (Most switchback bulbs in the market flash amber-white-amber-white).1 Minute Installation: Wide-range voltage, non-polarity design, and compatible for both standard and CK 3157 socket, comparable to OEM sized halogen bulbs and fit directly. IMPORTANT NOTE ! 1. This only replace dual-function stock lights that have front turn signal lights and DRL/parking lights function in one bulb, otherwise, the switchback bulbs will only work in one color or not light up ! 2. For turn signal lights, the 50w 6-ohm load resistor or flasher relay may be needed to prevent the hyper flash or the bulb does not blink for some vehicles. 3. Pls confirm the bulb size before purchasing, if you are not sure, please ask it on product page with your vehicle information. Friendly Service Responses within 24 Hours During the Business Days. Track Page Views WithAuctiva's Counter