I have just fitted LEDs to my 2020 Toyota Sienna. The difference is amazing. I can actually see inside the car at night if I need to drop something or look at the center console. I explored many landmarks to confirm the size of the bulb. Many bulb numbers are cross compatible but what I found is #12961, T-10 and 194. They are all the same and they worked for map lights, dome lights, cargo lights and front door panel lights. My first impression is that these lights are of great importance. For the price and the brightness you get. I'm not an electrician so I can't comment on the quality but looking at the bulb it didn't seem too bad to me. Even if you pay more for a "quality" lightbulb, it's mostly made in China in the same factory, just rebranded under a different brand, and costs five times as much. Not knowing how long they will last I will update my review if I run into any issues. For future reference, the install date is 10/07/2020. My photo shows the difference between the color temperature of original OEM bulbs and these cool white LEDs. Update from 10/14/2020:. The lamps get a little warm, so be careful with your application. Hotter bulbs also tend to have shorter lifespans, so we've yet to see how long they last. Will update again.
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