Red BAU15S PY21W LED Bulbs Canbus Error Free Reversing Light Brake Light Bulbs, BAU15S Rear Tail Light Backup Light, No Hyper Flash Led Car Stop Light

**** The Red 1156 P21W LED Bulb has garnered a mixed reception among customers, particularly for its compatibility with various vehicle models. Many users, particularly those with newer vehicles like the 2020 Accord and Elantra, have found success with the bulbs, enjoying the bright illumination without the dreaded "hyperflash" effect. However, this success is not universal—some users have reported issues, particularly with older models, like the 1994 Harley rear turn signals, which experienced hyperflashing even with built-in resistors. While some customers appreciate the performance during the initial months of use, longevity appears to be a concern, with reports of bulbs failing after about 10 months and subsequently throwing CANBUS errors. One user mentioned that they had to replace bulbs after 18 months, indicating potential durability issues. Additionally, fitting has been noted as a challenge, with some users stating that adjustments are necessary for installation, and others finding the bulb physically mis-sized for their sockets. Overall, while the Red 1156 P21W LED Bulb could be a solid choice for specific vehicles, potential buyers should carefully Consider compatibility and durability based on their vehicle model. **