Backup LEDs for 2009-2021 Nissan GT-R (pair), XPR (720 lumens) Scion But unfortunately if you're trying

But unfortunately if you're trying to run a set of LED headlight bulbs on a circuit that runs off pulsed voltage

It's truly that simple to easily mount halos reliably for years to come

they're well protected and weather resistant too

Direct replacement for factory 921 incandescent bulb

Backup LEDs for 2009-2021 Nissan GT-R (pair), XPR (720 lumens) Scion But unfortunately if you're tryingUpgrade. Add more light output and a modern appearance to your backup lights with the 921 XPR backup bulb. Each of the four sides of this bulb is populated with 4 high power LED chips for maximum brightness. Housed in an aluminum casing with a textured finish for superior heatsinking properties the XPR will last for years to come. Best of all installation only takes minutes simply take out your factory bulb and the XPR will fit snugly in the socket.