Design. The 31mm SMF2 LED bulb is a direct replacement for any 31mm-size bulb, commonly found in map lights, dome lights, and trunk lights in many vehicles. Populated with two 5050-size SMDs, the SMF2 upgrades the factory yellowish incandescent bulb to a more modern LED appearance. The SMF2 was designed with an embedded load resistor and implanted diode for superior reliability. With its durable metal terminals, it will fit snugly in the socket, and its light weight means it won't vibrate loose over time.
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.
Brightness. With 19 lumens of true, measured output, the SMF2 LED will provide similar light output to your original 31mm-sized bulb. If you are looking to increase output, we'd recommend checking out our HP6 option! 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.
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Posted By: David Taylor
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Product: Ark Test Pipes
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Product: EBC Brakesm
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Posted By: Lauren Bryant
Product: Spec D Tail lights
Order came fast and looks amazing on my car. I did have one problem where one tail light would blink sequentially and the other didn’t. I sent an email late in the day inquiring about it. I wasn’t expecting a response until at least the following day as it was so late. Within an hour they had gotten back to me informing me of a switch on the inside of the housing where you can choose sequential or regular. Sweet! Top notch customer service.
Posted By: Kevin F.
Product: Spec D Tail Lights
