Originally posted by RogerB:
Allow me to add to the negative.

If you want the max light output, get the Sylvania Xtravision. It's the same bulb and internal gas charge of the blue-filtered Silverstars without the light-filtering blue coating,





Roger,

NO no no...

I seriously wrestled with whether I should buy SilverStars or not, because I thought they were just a coated version of Sylvania's other bulbs.

So I wrote an email to Sylvania and got a technical explanation back. Cool Blues and SilverStars share a special filament and higher gas charge to offset the filter. Without it they'd be illegal. Sylvania tech admitted that this combination will likely yield a bulb that does not have the same life span as a "normal" bulb, because the filament is wound tighter.

The XtraVision bulbs, while they may produce the same amount of lumens, due so through a more conventional bulb w.o the filter.


I can't absolutely say that XtraVision lumens are higher or lower than SilverStar, they wouldn't answer that question. But they're a brighter bulb internally, and for me that was 'good enough'.

Brian Dors
1999 SVT