This is a replacement for a 7443 dual filament bulb. I replaced the turn signal/parking light on my 2002 Honda CRV. Yes, you need to add a pull-up resistor to prevent hyperflash. I screwed it directly to the metal frame to add an extra heatsink as the resistor gets very hot, see picture. The part works well, it shines much brighter than a standard incandescent bulb. I changed my headlights to LED last year and they got so bright my turn signal was practically invisible next to the bright lights. This fixed the issue and now others can see I'm actually using my signal when the headlights are on.
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