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- Packages: Includes one pair (2pcs) 2835-SMD 4257NA/4257 LED switchback bulbs, super bright 12V turn signal lights replacement for auto cars, trucks, motorcycles like 2019-2021 Ford F-150 front turn signal lights bulbs.
- Features: Dual Color: 6000K xenon white & amber yellow: Light white for parking lights or daytime running lights. Light up amber-off-amber-off for turn signal lights instead of amber all the time to make more noticeable.
- LED Chips: Each 4257NA/4257 LED switchback bulb is equipped with 8pcs high power and high illumination 2835 SMD chipsets.
- Easy fitment: T25 wedge dual fitment bulb, for some vehicles, extra load resistors maybe required to avoid the hyper flash or error code.
- Light Output: Each 4257NA/4257 LED switchback bulb light up to 1400 lumens, total 2800 lumens for both 4257NA/4257 LED switchback bulbs
- Color switch: 6000K xenon white/Amber yellow
- Cross reference number: 4257, 4257NA, 4257NAK, 4257NALL, etc.
- Applications: Used for replacing halogen/incandescent or damaged turn signal lights for better vision and safer driving.
- Lifespan: More than 30,000hrs in 25°C ambient.
30, 000 hours
LED Chip Type
High illumination 3020 SMD
-20~+40 °C (-4~+104 °F)
Cross Reference Number
4257, 4257NA, 4257NAK, 4257NALL
Alla Lighting warrants that its LED Conversion Kits will be free from defects in material and workmanship for ONE year from the date of purchase by the Original Purchaser. This warranty does not apply to any products that have been subjected to misuse, mishandling, misapplication, neglect (including but not limited to improper maintenance), improper installation, act of nature, motor vehicle accidents or alterations.
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- One pair (2 pieces) 3020-SMD 4257NA/4257 LED switchback bulbs (Turn signal lights replacement)
- Well packed in solid box