Purchased as a replacement for OEM lamps from HONDA that burnt out due to electrical issues.  Actually later, there was a recall of the HONDA wiring.  Good value, easy to replace, slightly brighter shine.  I'm not looking for anything extra fancy or special in my headlights, just need them to be bright for safety and durable for reliability, I would buy again and recommend these as replacements for those who just need a quality bright lamp.Be careful not to touch the bulb with your hands/fingers, the oils will shorten the life of the bulb.  Also, I recommend using a swab or Q-tip with alcohol to clean the bulb prior to installing.UPDATE 10/23/13: Originally I gave the bulbs 4 stars but dropped it to 3 stars.  Nice bulb while it lasted, both went out about the same time.  I wanted to add that my X-Treme Power were made in Poland.  These Philips lasted 1 year 9 months.  Seems short for me compared to the OEMs.  Interestingly I still had the old bulbs that came with my Honda.  On them are "Philips 9300 LL HB2 Dot H4 12V 60/55W E1 2C3 U G3 21 Germany".  Particular interest is the "LL", these original Philips lasted 7 years 3 months, perhaps the LL stands for long lasting.  The OEMs lasted 4X as long as these X-treme Power. I have replaced the X-treme Power with new EIKO Clear Vision Supreme, for a few reasons.  One is I can easily find clear technical specs for the EIKO brand, as big as Philips is, I couldn't for Philips.  Another is due to the short life experience I encountered with the X-Treme Power, I did not want to try another made in Poland bulb and decided to try EIKO (made in Korea).See my EIKO Clear Vision Supreme review for a lot of info on technical specs on different bulbs, etc.http://www.amazon.com/9003-ClearVision-Supreme-Halogen-Headlamp/product-reviews/B0061MRMF2/Also, here below is my latest find on a possible hidden gem of a light bulb.http://www.amazon.com/review/R2QU03Y576KOZN/UPDATE 11/6/13: included a statement above regarding cleaning the bulbs prior to installation.Please click YES if my review have been helpful to you, it will encourage me to continue writing and updating my reviews, and leave a comment if you have any questions, I will be more than happy to answer if I can be of help.