Brand: Diode Dynamics
Cool White 31mm SMF2 LED Bulb Single Diode Dynamics
The 31mm SMF2 LED bulb is a direct replacement for 31mm-size bulbs.
Currently out of stock
No hidden fees — taxes included in the price & Free Shipping.
We accept major cards and digital wallets. Additional installment plans, when available, are offered by Shopify at checkout based on order eligibility.
Cool White 31mm SMF2 LED Bulb Single Diode Dynamics
The 31mm SMF2 LED bulb serves as a direct replacement for any bulb of 31mm size, commonly found in dome lights, map lights, and trunk lights in various vehicles.
Populated with two 5050-size SMDs, the SMF2 upgrades the factory yellowish incandescent bulb to a more modern LED appearance.
Designed with an embedded load resistor and implanted diode, the SMF2 ensures superior reliability.
Its durable metal terminals allow for a snug fit in the socket, and its lightweight construction prevents it from vibrating loose over time.
Unlike other bulbs available, this bulb features constant-current circuitry along with transient suppression.
This design means the bulb will last for years, not months, without flickering or failure.
Like every Diode Dynamics product, it is backed by an industry-leading three-year replacement warranty.
With 19 lumens of true, measured output, the SMF2 LED provides similar light output to your original 31mm-sized bulb.
If you wish to increase output, consider our HP6 option!
All Diode Dynamics LED lighting is rated with accurate, measured lumen figures, not calculations or estimates.
We test the true output in-house and provide you with the real numbers for comparison.
In addition to vibrant colors such as blue, red, amber, and green, the SMF2 is also available in a cool white 6000K and warm white 3000K option.
Whether you prefer a modern cool white appearance or a traditional warm white color, we have the color to meet your needs.
Key Features
Specifications
- Length
- 10.0 lb
- Width
- 6.0 lb
- Height
- 1.0 lb
- Weight
- 0.06 lb
- ASIN
- B085B9YB2Y
- UPC
- 691026107011
- Ships From
- United States
- Brand
- Diode Dynamics
Frequently Asked Questions
About Cool White 31mm SMF2 LED Bulb Single Diode Dynamics
01 What is the size of the SMF2 LED bulb?
The SMF2 LED bulb is 31mm in size.
02 What is the light output of the SMF2 LED bulb?
The SMF2 LED bulb has a measured output of 19 lumens.
03 What applications can the SMF2 LED bulb be used for?
The SMF2 LED bulb is used in map lights, dome lights, and trunk lights.
04 What is the ASIN for this product?
The ASIN for this product is B085B9YB2Y.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 691026107011.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Aug 29.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.



