LASFIT 31mm Festoon LED Bulb DE3022 (Pack of 4) 6000K Xenon White, 400LM Canbus Error-Free

These LASFIT DE3022 festoon bulbs deliver a crisp 6000K xenon-white light and fit 31mm (1.22 inch) applications such as dome, map, trunk, glove box, door and vanity mirror lights. Each bulb houses multiple high-power SMD chips and a built-in resistor to reduce vehicle CAN bus warnings. Sold in a convenient 4-pack, they are designed to be a straightforward upgrade from typical halogen festoon lamps.

How much brighter are these bulbs compared with factory halogens?

LASFIT’s DE3022 bulbs use powerful 3030 SMD LEDs to increase light output substantially while remaining energy-efficient. Expect a dramatic improvement in brightness and color clarity over conventional halogen festoons.

• Combined output rated at about 400 lumens per bulb (approximately 640LM per pair when bundled).
• Cool 6000K color temperature for crisp white illumination and improved visibility.
• Up to three times the brightness of many original halogen bulbs in the same size.

Will these bulbs trigger a bulb-out or CAN bus error on modern vehicles?

These LEDs incorporate an integrated resistor and circuitry to address many CAN bus and bulb-detection systems. That reduces the chance of dashboard warnings or hyper-flash without requiring aftermarket decoders in most installations.

• Built-in resistor helps emulate halogen load for compatibility with vehicle electronics.
• Designed to lower false bulb-out alerts and flash-rate errors on common vehicle systems.
• Still check vehicle-specific notes—some models with strict monitoring may need additional adapters.

Are these bulbs easy to fit and where do they work best?

The DE3022 bulbs are made to match the 31mm (1.22 inch) festoon footprint, making them a direct swap for many interior sockets. Their compact form suits a range of interior light fixtures, from dome lights to vanity mirrors.

• Direct replacements for DE3175, DE3021, DE3022 and similar 31mm festoon bulbs.
• Common uses: dome, map, trunk, cargo, door, glove box and vanity mirror lights.
• Also compatible with some marine interior lighting and navigation fixtures where 31mm festoons are used.

How is heat managed and what should I keep in mind during installation?

Each LASFIT bulb features an aluminum heat-sink design to disperse warmth and preserve LED lifespan. Standard safety practice applies: cut power before swapping bulbs and avoid forcing components into sockets.

• Aluminum heatsink provides passive cooling to protect LEDs and electronics.
• Turn off the vehicle or disconnect power before replacing bulbs to avoid shorts.
• Confirm the existing bulb’s length is 30mm or 31mm to ensure a proper fit.

Who is this for? Automotive owners seeking a bright, cool-white interior upgrade without frequent bulb changes or dashboard warnings will find the LASFIT DE3022 pack useful. It’s appropriate for DIY installers who want improved cabin illumination, fleet operators replacing multiple bulbs, and boat owners using compatible festoon sockets. If your vehicle has highly sensitive CAN bus monitoring, verify compatibility before purchase or be prepared to add a decoder as needed.