Does the 3157 bulb really cause hyper flashing when used as blinker light?

short answer yes ( explanation ) in most cases yes, modern cars are designed to make your blinkers flash rapidly when you have a light out, if a bulb burns out then you have lower resistance or ( load ) in the circuit. LED use less power than a standard bulb so the system hyper flashes . you can add a load resistor to stop the flash , but you also lose the ability to tell if you have a light out also load resistor get very hot and if not installed correctly can cause damage, I would recommend replacing the relay with one designed to be used with LED . then everything will work the way it was intended. or just put the LED in and deal with the fact that your blinker will blink faster, and you will have to do a walk around your vehicle to check that all your lights work, just like we did before computers came along

Will this fit my 2005 surburban

These replace standard bulbs; I.e. 3057, 3157, etc., so I am fairly certain they will fit any vehicle that utilizes those bulbs

Would this fit a 2005 Subaru Forester?

check the number on your existing bulb, these lights work great and are really bright.

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iBrightstar 3157 LED Bulb White, 4157 3156 LED Reverse Light Bulbs Super Bright for Tail Brake Lights Backup Lights Turn Signal Lights, 2 Pack

Product ID: 36847275

Details

Brand
iBrightstar
Color Temperature
6000 Kelvin
Light Source Type
LED
Specific Uses For Product
Indicator
Wattage
3.84 watts

⚡12-24V wide voltage compatibility

💡54 SMD + 3 SMD chips for ultra brightness

🛠️Plug & play easy installation

₱1902

Duties & taxes included

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Sold byAmazon PhilippinesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💡 Light up your drive with brilliance that commands attention!

EFFORTLESS UPGRADE - Non-polarity, plug & play design means zero hassle installation—get road-ready instantly
SUPERCHARGED BRIGHTNESS - 300% brighter than halogen for unmatched visibility and style
UNIVERSAL VOLTAGE RANGE - Works seamlessly from 12V to 24V—perfect for diverse vehicle needs
DURABLE ALUMINUM HOUSING - Premium heat-dissipating design ensures longer lifespan and consistent performance
SMART CONSTANT CURRENT IC - Built-in tech for stable light output and energy efficiency

The iBrightstar 3157 LED Bulb 2-pack delivers a powerful 300% brightness boost over traditional halogen bulbs, featuring 54 SMD 3014 and 3 SMD 3030 chips per bulb. Designed for 12-24V systems, these bulbs fit a wide range of vehicle models and applications including tail, brake, reverse, and turn signal lights. With a robust aluminum housing and built-in constant current IC, they offer superior heat management, longer lifespan (up to 30,000 hours), and energy efficiency. Installation is plug-and-play with a non-polarity design, making it the perfect upgrade for millennial professionals seeking both style and performance on the road.

Specifications

ASIN	B01MDUEBX1
Auto Part Position	Rear
Best Sellers Rank	#220 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Turn Signal Bulbs
Brand Name	iBrightstar
Color	White
Color Temperature	6000 Kelvin
Customer Reviews	4.4 4.4 out of 5 stars (69,155)
Fit Type	Vehicle Specific Fit
Item Weight	11.93 g
Light Source Type	LED
Manufacturer	iBrightstar
Manufacturer Part Number	iBrightstar-3157-3014/3030-54/3W
Model Number	3157-3014/3030-54/3W
Operating Life	30000 hours
Package Quantity	2
Specific Uses For Product	Indicator Light
UPC	700161893618
Unit Count	2 Count
Voltage	12 volts
Wattage	3.84 watts

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