Diode Dynamics
Diode Dynamics 921 XPR LED Bulb - Cool - White (Pair) - DD0394P
- SKU:
- DIODD0394P
- UPC:
- 691026121833
- MPN:
- DD0394P
- Availability:
- Regularly stocked product
Description
Are these bulbs a direct replacement for my factory 921 bulbs?
DIO Replacement Bulbs are engineered as direct replacements for factory incandescent 921-size bulbs, ensuring a seamless transition to enhanced LED lighting.
How bright are these bulbs?
Achieving a performance claim of 720 lumens per bulb, these DIO Replacement Bulbs deliver dramatically brighter and clearer lighting for superior visibility.
Diode Dynamics DIO Replacement Bulbs provide a direct upgrade for your 921-size bulb fitment, delivering 720 lumens per bulb for dramatically brighter lighting. Featuring 16 high-power LEDs and fully metal heatsinking, these bulbs ensure consistent brightness and longevity. Experience a seamless plug-and-play installation for superior illumination and a modern appearance.
Key Features
- Direct replacement for factory incandescent 921-size bulb
- 16 high-power LEDs arranged on all four sides
- Fully metal heatsinking for maximum output
- Inductive constant-current drive circuit
- 720 lumens per bulb
- constant-current circuitry, along with transient suppression
Why Choose the DIO Replacement Bulbs
Delivers a seamless upgrade, instantly enhancing your vehicle's lighting.
Provides superior illumination with a wide, even light pattern for better visibility.
Achieves consistent brightness and longevity thanks to advanced thermal management.
Ensures reliable performance and protection against electrical surges for peace of mind.
Who Is This For?
Daily Driving Comfort — 8/10
Brighter, clearer lighting improves visibility and reduces eye strain.
Street Performance — 8/10
Enhanced brightness and clarity for improved road illumination.
Visual / Aesthetic Upgrade — 7/10
Modern LED technology offers a brighter, cleaner appearance.
Easy DIY Install — 9/10
Plug-and-play design ensures simple installation process.
Track / Autocross — 6/10
Improved visibility aids driver reaction time on track.
Racing Competition — 6/10
Enhanced visibility can offer a slight competitive advantage.
Frequently Asked Questions
How do DIO Replacement Bulbs improve my vehicle's lighting for daily driving?
DIO Replacement Bulbs deliver dramatically brighter and clearer lighting for daily driving comfort. With a Usage Score of 8/10 for Daily Driving Comfort, these bulbs provide superior illumination, ensuring a seamless upgrade for enhanced visibility. Experience a noticeable difference in clarity and safety on every drive.
Are DIO Replacement Bulbs easy to install in my car?
DIO Replacement Bulbs feature a plug-and-play install type for a straightforward upgrade. Designed as direct replacements for factory incandescent bulbs, installation is quick and requires no modifications. Enjoy enhanced lighting with minimal effort and time commitment.
How much brighter are Diode Dynamics DIO Replacement Bulbs compared to stock bulbs?
DIO Replacement Bulbs offer a performance outcome of significantly brighter and clearer lighting with 720 lumens per bulb. This leads to superior illumination, crucial for maintaining awareness during Street Performance, where a Usage Score of 8/10 reflects the benefit. Achieve dramatically improved road visibility with this powerful upgrade.
What makes the Diode Dynamics DIO Replacement Bulbs so durable?
DIO Replacement Bulbs are built for longevity with fully metal heatsinking for maximum output and an inductive constant-current drive circuit. These features contribute to consistent brightness and extended lifespan, a key benefit for reliable performance. Enjoy peace of mind with advanced thermal management and protection against electrical surges.
Important Notices
⚠️ Proposition 65 Warning: This product can expose you to chemicals including lead and/or other substances known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Browse More: Shop All Bulbs — Lights
Additional Information
Clearance Item: |
N |
MPN: |
DD0394P |
Proposition 65: |
Y |
Case Lot Quantity: |
1 |
Category: |
Lights>Bulbs |
Install Type: |
Plug and Play |
Product Level: |
Premium Performance |
Daily Driving Comfort: |
8/10 |
Street Performance: |
8/10 |
Visual / Aesthetic Upgrade: |
7/10 |
Easy DIY Install: |
9/10 |
Track / Autocross: |
6/10 |
Racing Competition: |
6/10 |
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