Alla Lighting 7443 7444NA T20 LED Switchback Xtremely Super Bright Dual Color White Yellow (Amber) High Power 2835 28-SMD LED Bulbs for Replacing Turn signal Light Lamps (7443) (Set of 2) Dimension (inches): 0.71 in diameter, 2.50 in length, longer than stock lamp, please check the length is fittable before purchasing. Newest version 28 pieces high power 2835 LED chips per bulb. Xenon White for parking light/daytime running driving light, Amber Yellow for Turn signal, brightest in the market. Compatible for both CK/ SRCK and standard type socket.Warranty: 1 year hassle-free warranty. Working Voltage: 12V ~ 18V DC PLZ check your owner manual to confirm your original bulb size is one of the cross reference number: 992, 7443, 7443LL, 7443ST, 7444NA, 7444ll, T20, the Amazon fitment system is only for reference,it can't guarantee 100% accuracy.so please check the original bulb size or owner manual before purchasing. It requires 50W 6ohm load resistor & the led switchback only works greatly based on the original bulb has dual function: front turn signal & parking/ DRL on the same bulb.