There are two type 7443 socket used in U.S. standard socket and CK sokcet , the incandescent bulb can work on both type . But led bulb only work for one type , our bulb come with standard base only work for standard socket ,not for ck socket. If you are not sure your socket type ck or standard , please use the keyword (CK or Standard Test) on youtube ,the video will show you how to test the socket.( please check before you place the order , Our bulbs come with Standard Base, NOT CK Type, put standard bulbs into CK type sockets ， the bulb may POP THE FUSE OR BULB BURNT OUT IN COUPLE DAYS ,please do not leave one star review if you bought the worng type , we accept 30 days return)
Note: you might need to add 50W 6-Ohm load resistors or change flash rely to prevent the LED bulbs from hyper flashing,
Warning!!!...Don't be fooled by the fake seller and counterfeit product!!)... JDM ASTAR is the Amazon registered brand . We never authorize other seller to sell our products... Please check the seller name before you place the order... Select the JDM ASTAR instead of others who list here not identical product by lowering prices only a little to take advantage of the reputation built by JDM ASTAR . The counterfeit bulb using the cheap ,dim and low quality led chips and doesn't even have driving IC and resistor, the bulb burnt out soon . It not safe.
Our product are in anti -static bag with JDM ASTAR logo , If you receive the product from fake seller , You can file A to Z gurantee claim to get your money back without returning the counterfeit product " Also, please report the violation at ....... http://www.amazon.com/gp/help/reports/contact-us.
