Review on 💡 Piaa 15211 H11 Xtreme White Plus High Performance Halogen Bulbs (Pack of 2) – Brighten Your Drive with Superior Visibility! by Omar Alradwan

And they were there all the time as daytime running lights. And it's really not a failure. A "bubble" has developed indicating it is about to fail. So I replaced it. And the whole time they were bright white. I have the standard bulb installed now as a temporary measure, but will be replacing it with another PIAA Diamond White bulb soon. , or their more yellowish than diamond-white. I can't speak to that directly, YMMV, but I can tell you that I bought mine direct from Revain's inventory and not from a third-party Revain vendor. A possible explanation. With premium automotive replacement bulbs selling for between $50 and $150 a pair, it's no surprise that counterfeiting is rampant in some supply chains. That's why Philips and OSRAM now seal their packages with a SERIAL NUMBER that can be checked on their websites to confirm the lamps' authenticity. But not PIAA. UPDATE: I've started to consider the possibility that all the later low star ratings could mean that the quality/durability of this lamp may have diminished since I bought it seven years ago. So I took a closer look. I've spent a lot of time going through ratings and specs of all the bulbs that fit my vehicle (HB3), weighing the trade-offs between price, whiteness (vs. brightness, durability, street legal, etc.). I ended up buying the Night Set Breaker Unlimited rated OSRAM 3700K... better balance between white and bright, slightly overpriced and shorter lifespan. So far I am very satisfied with their performance.