Maybe they had some teething problems with the new China factory, or maybe something else happened, but the last batch of these bulbs Toshiba sold through aftermarket channels in '08 or so were of uncharacteristically inconsistent quality. The ones they sold through OE channels were fine, and still are -- they meet Toyota's and GM's quality requirements for original equipment (you can also get it from Toyota as part number 90981-13066, but then it's more expensive than getting it in the GM box). These bulbs have better luminance, lifespan, and output than the Philips 9011/HIR1, so now that they're available at a cost-effective price point...why not!