921 HP36 Cool White Backup LED Bulbs Upgrade. Add a modern appearance to your backup lights with the 921 HP36 backup bulb. Populated with 36 high-power Samsung LEDs, the HP36 illuminates a full 360 degrees. Housed in an aluminum casing with a textured finish for superior heatsinking properties, the HP36 will last for years to come. Best of all, installation only takes minutes - simply take out your factory bulb and the HP36 will fit snugly in the socket. Brightness. At 210 lumens, the HP36 will provide slightly more total light output compared to your factory bulb. If you are looking to increase output, we'd recommend checking out our 921 XPR! All Diode Dynamics LED lighting is rated with accurate, measured lumen figures, not calculations or guesses. We test the true output in-house, and provide you the real numbers to compare. Reliability. Unlike other bulbs on the market, this bulb is built with constant-current circuitry, along with transient suppression. That means this bulb will last for years, not months, with no flickering or failure. And like every Diode Dynamics product, it's backed by an industry-leading three-year replacement warranty. Experience. After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. Unlike every other LED distributor, we assemble and engineer products ourselves in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products, that will exceed your expectations. Please contact us if you'd like to discuss your lighting project! Features Direct replacement for factory incandescent 921-size backup bulb. Omnidirectional LEDs for full distribution in housing. Metal base for thermal dissipation and reliability. Nonpolar circuit design with voltage spike protection. Increased output with LED Appearance. Plug and play, simple installation. 210 lumens per bulb. Applications 2015-2023 Ford Mustang 2009-2020 Nissan 370Z 2009-2023 Nissan GT-R 2015-2017 Dodge Viper 2022-2023 Subaru BRZ/Toyota GR86 2001-2016 Honda Civic Coupe 2006-2015 Mazda Miata 2013-2020 Subaru BRZ/Scion FR-S 2008-2014 Dodge Challenger 2008-2018 Audi S5 2012-2016 Honda Civic Si 2016-2018 Ford Focus RS 2003-2008 Infiniti G35 2015-2021 Subaru WRX STI 2013-2016 Hyundai Veloster Turbo 2009-2016 Audi S4 2003-2005 Dodge Neon SRT-4 2008-2013 Infiniti G37 2010-2016 Hyundai Genesis Coupe 2009-2011 Mazda RX-8 2005-2006 Acura RSX What's In The Box? (2) Bulbs References Installation Instructions Warranty Manufacturer Standard Warranty