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6451 LED Bulb - 6 SMD LED Festoon - 42mm

Part Number: 4210-xWHP6-V2
Select Color Options:
Cool 6600K
Warm 3100K
In Stock
$3.95 ea. (per Bulb)
Volume price as low as $3.55
Orders ship on or before  Tuesday 05/31/2022
  • Select options to see various notes.

Save 10% On Your Entire Order using code MEMDAY22 Details »

Promo code can not be combined with any other promo codes or discounts. Only valid on orders placed between May 23rd 2022 and May 30th 2022.


LED replacement bulbs can fit numerous vehicle applications, such as dome lights, map lights, footwell lights, trunk lights and hood lights. This 4210 LED festoon bulb replaces a variety of traditional bulbs including 4210 and 6451 bulbs. The 42-mm bulb has 6 enhanced LEDs (2835 SMD) on a rectangular PCB (printed circuit board). LEDs are mounted to one side of the board for direct 120° illumination with no wasted light. Festoon base for easy plug-and-play installation. The energy-efficient bulb operates within a wide 10-30V DC range and is designed to last 50,000 hours on your car, truck, SUV, or van—42 times longer than incandescent bulbs. Available in cool and warm white. Not sold in pairs. Price per bulb.

Important Notes - Please read before purchasing:
  1. This bulb is oversize, please see dimensions under Specifications tab.
3 Years
Super Bright LEDs, Inc. offers a 3-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. If the same product is no longer available, a product of equal value may be substituted. Read More
  • LED Map Lights
  • Glove Box
  • Footwell
  • Trunk
  • LED Vanity Lights
  • Anchor Lights
  • Stern Lights
  • Masthead Lights
  • Dome Lights


Swipe left to see additional specifications
Part NOCCT / Wavelength
Current Draw @ Operating Voltage
Price Ea.Product WeightConstant Current
-4210-WWHP6-V23100 K85 lm0.16A$3.95--
-4210-CWHP6-V26600 K93/100 lm0.08A$3.95--
4210-WWHP6-V2 - 6451 LED Bulb - 6 SMD LED Festoon
6451 LED Bulb - 6 SMD LED Festoon



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Dock Foy
Technical Level
Part Number
Reviewed On

Putting a bright light on things

I purchased a 44mm bulb as the chart stated, my vehicle required, I was so happy when the bulbs arrived at my home. I quickly tried to install them in my vehicle, only to discover, they were the wrong bulbs, my vehicle requires a 42mm bulb, I called the company, return the original purchased bulbs with no refund problems, purchased the 42mm bulbs, and they are very nice, very bright, crisp clean look, I love them, I will continue shopping with this company, I give them and their service, 5 stars

Helpful? Yes (5) No (0)

Technical Level
Part Number
Reviewed On

Fits well into original 578 bulb housing

In my 2001 Ford F150 Supercrew, this bulb fits easily into all five 578 interior dome and map light slots. Bright but not too bright. Warm color works well for interior. The contacts at ends engage well with contact clips in the housing and the circuit board does not interfere with the clips or with housing.

Try this one rather than the 4410 LED from the vehicle lookup. On my truck the 4410 LED circuit board is too long to fit between contact clips.

Helpful? Yes (5) No (0)

Technical Level
Part Number
Reviewed On

Honda Accord Dome Light

Wanted to replace the dome light in my Honda Accord, so I took a risk with this over sized light since I really wanted the extra lumens. The board the LEDs are mounted to ended up hitting the clips on the base, so grabbed the Dremel tool and ground off a little bit of metal from the clips. Don't grind the board!!! You'l damage the ICs! A few minutes later, the fit was spot on and the cabin was flooded with bright light. Caution - don't look into the light when you turn it on - they're that bright!

Helpful? Yes (4) No (0)

Technical Level
Part Number
Reviewed On

Good LED replacement dome light

These were purchased to replace the standard dome light bulbs in a Sprinter Crew Van to reduce electrical current draw. They fit exactly like OEM bulbs, are slightly brighter and shine a natural color tone. No problem with "after glow" or bulb-out indicators which I'd read about as a problem with other LED replacements. Purchase was easy and delivery was prompt.

Helpful? Yes (3) No (0)

Technical Level
Part Number
Reviewed On

Bathroom on an old boat.

Only problem is now you can see any dirt !!

Helpful? Yes (3) No (1)

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