Review on Lasfit 3157 3056 3156 3057 4157 LED Bulb: Bright Amber Yellow Turn Signal & Side Marker Lights (2-Pack) by Kyle Deel

2nd EDIT 12/2020: I didn't use these bulbs every day all the time but they broke after a few years. I give them about 6 months use. They restart when the parking lights and horn are on, create false lighting, stay at a constant brightness level, and damage the car's electrical system. They were immediately removed and thrown away and I switched to Sylvania LEDs. I do not recommend LASFIT. EDIT: I tested them in Chevrolet Colorado 04-12 taillights and found that despite their revolutionary design, they do NOT make full use of the entire body reflector on all rear ports. There's a nice unlit "empty" strip in the middle if all the reflectors (just above and below the bulb itself - photo added). I don't think it's safe or acceptable for this car. The bulb lost a star for that. I do not recommend them for the 04-12 Colorado/Canyon rear wheel. However, the front end was great. Amber 3157 + ADDED Red 3157 and White 3157 I use a total of 5 pairs on the car. I installed two pairs of amber ones. I only added two pairs of red and one pair of white. Location: front turn signal, rear turn signal, brake light and reversing light. First impression: I took the pears out of the packaging and examined them. They appear to be well made and show signs of excellent heat dissipation design. Using fewer LED chips also helps and to be honest it doesn't reduce the output power in any way. Installation resulted in a very snug fit in the 3157 sockets. Many LED bulbs do not fit well in some sockets and mine tends to have a looser side on many brands. However, they fit well. Control of the installation of lighting and reflector. It passed through the reflector with excellent light output. The position of each LED chip is critical. They flood the meeting with light. For the brightness output, they are also excellent. It should also be noted that the increase in brightness from the stern to the signal was excellent and easily visible. Make it an important moment for your car. I see cheap LEDs in cars that are so bad that signal (or even brake) lights are barely brighter than running lights. Do not use such light bulbs as this is safety related. Finally durability. I can't say anything about durability yet.