If the new Sylvania Silverstar (available in North America) is the same as Osram Silverstar, then it is as good as Philips Vision Plus in producing up to 50% more light, and Philips V P is not available in North America. If Osram Silverstar H7 can be bought for less than $40 in America, I will try it when my current Philips V P is needed to be replaced.