SMF1 28mm LED Bulb

The Diode Dynamics 28mm SMF1 LED bulb offers a straightforward upgrade for vehicles using 28mm festoon-style bulbs, typically found in vanity mirror applications. Designed as a direct replacement for factory incandescent bulbs, it provides a cleaner, more modern LED aesthetic. Each bulb is populated with a single 5050-size SMD, delivering 16 lumens of accurately measured light output, comparable to the original bulb. Installation is simplified with its plug-and-play design, featuring an OEM-size plug and play connector and durable metal terminals to ensure a secure fit. Built for longevity, the SMF1 incorporates constant-current circuitry and transient suppression to prevent flickering or premature failure, backed by Diode Dynamics' industry-leading three-year replacement warranty. The bulb operates within a wide temperature range of -40C to 85C and is polarity specific. It is available in two white color temperatures: cool white (6000K) for a crisp, modern look and warm white (3000K) for a more traditional feel. Additionally, vibrant color options including blue, red, amber, and green are offered. Installation is a simple DIY process with no modification required, estimated to take 10-20 minutes using a non-marring trim tool. The product includes either a single bulb or a pair, depending on the selected SKU. Diode Dynamics provides a 30-day return policy with no restocking fee and a 100% satisfaction guarantee. The application is specifically for vanity mirror lights, and users are encouraged to use the manufacturer's Bulb Finder tool if unsure about compatibility.