Here is the best bulb test at
www.powerbulbs.com as either of these two is a winner.
Winners of the coveted 'Best Buy' award are:
Philips Vision Plus
""This is the best 50+ bulb here. Key to it's success was it's super bright output - the most powerful tested. In the light tunnel, the difference could be seen by the naked eye." and "This is a superb bulb with a particularly wide beam... whether you opt for Philips or Osram you'll have chosen wisely."
Available in H1 , H4 and H7 - in stock and ready to ship.
Osram Silverstar
"Victories don't come much closer than this! In the light tunnel there was little to choose between this and the Philips +50. But the Silverstar gets the Best Buy award, thanks to a slighly better figure in our 75 metre test" and "Original Equipment makers tend to be the best at building bulbs to deliver high light outputs. Osram's version was pipped to the post by Philips, but it still a superb product, with a wide 75 metre beam."
Available in H1, H4 and H7 - in stock and ready to ship.
Philips Blue Vision
"For the first time here is a blue bulb worthy of our Best Buy award. If you must have the xenon look, the Blue Vision is the best of those tested"
Available in: H1, H3, H4, H7, 9005, 9006 - in stock and ready to ship.