Product: TuningPros LEDRS-3157-RS18 Rear Signal LED Light Bulbs 3157, 18 SMD LED Red 2-pc Set
Overall sentiment: negative
Customer reviews:
Requires an added resistor to correct 'fast blink' unless you don't mind your electrical system thinking your brake lights are out. This fact isn't very well pointed out with these LED tail lamp auctions. Also, not exceptionally bright. No moreso than stock, so if you're looking for something brighter or more distinctive these aren't the lights. 
 Cheap junk 
 TOOK THEM ALL OUT BLINK TO FAST ???  IT LIKE BULB GOING BAD. 
 they did not function at all 
 the bulbs i got fit very loose in the socket all i had to do was shake it a lil bit and it would go out. not dependable enough. 
 not a single one worked 
 Broke during install.  I don't recommed these. 
 Worst money invest lights don't have warranty at all and to get you money back hahahah 
 installed these and blew the fuse right away in a 2004 trailblazer. replaced the fuse and put the last back in and blew a different fuse in the BCM. I am not going even try these bulbs again. I cannot say whether this is specific to the trailblazer or not but I have no use for them now. I was using them as the brake bulbs. 
 Suppose to be a replacement for the bulb that fits gl1800. But it isn't
Product just feels cheap also 
 Lights wasn't that  very bright 
 The base of the L.E.D. doesn't fit deep enough into the socket of my vehicle, so the lights always fall out or become misfit. As they move or mis-adjust my turn signal flickers as to indicate the bulb is out. Really annoying. I will be putting the old incandescent bulbs Back. The 2 stars I rated it were because when they did work they did work they worked great, they were bright, they were less hot, and they were very energy efficient has measured with my OVDM... 
 wrong ineeded clear 
 This will miss up your truck . I promise 
 THESE BULBS WILL FIT AND WORK IN MY VECHICLE, BUT WON'T WORK RIGHT . 
 doesnt work don't spend your money its a waste plus shipping took almost two months