Question 1

After install, these bulbs stay on and don’t flash when I use my turn signal.

Accepted Answer

Your flasher requires an electric current greater than a minimum to flow In the light circuit.  You can replace the flasher with one that doesn’t require that current (power is saved), or you can connect resistors, 8-10 Ohms, 25 Watt, in parallel with the leds (power wasted)

Question 2

Are these polarity sensitive? I have an issue of feedback to my instrument cluster turn indicators when I hit my brakes.

Accepted Answer

Is it only the cluster turn indicators that come on when you hit the brakes, or do other lights come on?
Do the brake lights on your car double as turn signal lights?

If it is only the turn signal indicators, and your brake lights are also used as rear turn signal lights, then you need to do one of the following:  A) Install load resistors.  B) Replace your turn signal flasher with one that is designed to be used with LED bulbs. C) Go back to using incandescent bulbs.

There is different issue:  With some LED bulbs that replace two filament incandescent bulbs, when you hit the brakes, some current feeds back into the tail light circuit. This can result in current flowing to the front parking lights, the side marker lights, and the instrument cluster back light.  If this is your problem, you can do one of these things:  A) Go back to incandescent bulbs. B) Try to replace these LED bulbs with a model designed to avoid this problem.  C) Have someone design and install a circuit with diodes to block the feedback.

Question 3

What is the total height of this bulb, including the base?

Accepted Answer

Not sure with the height, i didnt measure it. All i know is its the same size of the stock bulb on my elantra 2010

Question 4

why do the product pictures show 2 clearly different products? I want the ones in the box picture which say red intense not the bottom picture

Accepted Answer

In the box it comes 2 identical 1157 red led bulbs.  Theu are not different bulbs.

ASIN	B077FRBQ2K
Auto Part Position	Outer
Best Sellers Rank	#1,411,521 in Automotive ( See Top 100 in Automotive ) #16,955 in Automotive Headlight Assemblies
Brand Name	Philips Automotive Lighting
Color	Amber
Customer Reviews	4.1 4.1 out of 5 stars (261)
Fit Type	Vehicle Specific Fit
Global Trade Identification Number	00046678721779, 50046678721774
Included Components	LED Bulb
Item Type Name	Ultinon LED (Amber)
Item Weight	9.07 g
Light Source Type	LED
Manufacturer	Philips
Manufacturer Part Number	1157ALED
Manufacturer Warranty Description	See manufacturer
Model Number	1157ALED
Number of Items	2
Operating Life	50000 hours
Package Quantity	1
UPC	046678721779
Unit Count	2 Count
Voltage	12 volts

Philips Automotive Lighting 1157ALED Ultinon LED (Amber), 2 Pack

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