Price: $24.99
(as of Nov 28, 2025 07:00:31 UTC – Details)
Product description
Alla Lighting WT21W/7W WT21/7W LED Bulbs, Super Bright Rear Brake, Tail, Turn Signal Lights Bulbs

Optional Color:
6000K Xenon WhiteAmber YellowPure Red
Product Features

High Performance, High Illumination


Product Details

Sold by 2

Package
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Customer Reviews
4.3 out of 5 stars 66
4.3 out of 5 stars 66
4.5 out of 5 stars 168
4.2 out of 5 stars 61
4.5 out of 5 stars 168
4.4 out of 5 stars 3,395
Price
$24.99$24.99 $24.99$24.99 $24.99$24.99 $24.99$24.99 $24.99$24.99 $18.99$18.99
Base
WZX3 x 16q WZX3 x 16q WUY3 x 16d W2.5x16q WUX3 x 16d W3 x 16q
Filament
Dual Filament Dual Filament Single Filament Dual Filament Single Filament Dual Filament
Light Output
1400 Lumens/Bulb 1400 Lumens/Bulb 1400 Lumens/Bulb 1400 Lumens/Bulb 1400 Lumens/Bulb 1400 Lumens/Bulb
Working Power
8.5W 8.5W 8.5W 8.5W 8.5W 8.5W
Color Options
Pure Red, 6K White Pure Red, 6K White Amber Yellow, 6K White Amber Yellow, 6K White, Red 6000K White Amber Yellow, 6K White, Red
Cross Reference No.
WT21W/7W, WT21/7W WT21W/7W, WT21/7W WTY21W 4257 4257NA WT21W 3157 3457 3057 4057 4157 4114 3156
Applications
Turn Signal, Brake, Tail Lights Turn Signal, Brake, Tail Lights Turn Signal Lights Turn Signal Lights Back-up Reverse Lights Turn Signal, Brake, Tail, Reverse Lights
(Set of 2) Dual Filament WZX2.5x16q base: 1400 lumens per WT21W/7W WT21/7W LED Bulb, total 2600 lumens for both WT21/7W LED lights bulbs with projector-lens; Each WT21/7W LED bulb is equipped with high illumination and high power 33 pieces 5730 LED chips.
Best features: Built-in USA-made IC driver and capacitors for better heat dissipation and longer lifespan.
WT21/7W dual filament LED lights replacement bulbs. Extra load resistors maybe required to avoid the signal hyper flash or error code. Built-in Intelligent IC driver and 6063 aviation aluminum material for best cooling and longer lifespan.
Working Power: 8.5W, Volts: 12V ~ 24V; Waterproof IP67; Applications: Used for upgrading turn signal blinker light, brake light, taillights, tail light lamps, rear side marker lights, etc.
Cross reference number: WT21W/7W, WT21/7W, WTY21/7W, etc. Color: Pure red. One year warranty. Lifetime technical support from USA.
Customers say
Customers find the LED bulbs work well, with one mentioning compatibility with the 2022 F150, and they appreciate their brightness. The build quality receives positive feedback, with one customer noting they’re a good replacement bulb. The flashing feature receives mixed reviews, with one customer reporting no hyperflashing issues. Customers disagree on the fit.


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