Review on 4Pcs 42Mm 5050 3SMD Canbus Error LED Festoon Bulbs - Perfect For Car Interior Dome/Map/Trunk/License Plate Lighting (Blue) by Michael Copeland

The reverse lights in my RX were fairly dim and one burned out, so I decided to try LED. These lights are very very bright, the picture shows the OE incandescent on the left and the LED on the right. They fit the housing and the connector fine for the 921 bulb they replaced. I'm not sure my particular car model monitors the reverse lights but I didn't get any error lights.The light pattern is a bit inconsistent, this is normal because the old reflectors aren't built for LEDs, so in the end they illuminate only a little more but are much more noticeable.