Here's a shot I took the other day... it's difficult to tell in real-life because the bulbs are so bright, but you can easily see the colour difference in the picture.
Philips 85122 on the left, Philips 85122+ on the right. I bought the bulbs and ballasts on ebay, and I was sent one of each
Anyways, just an FYI to anyone who was wondering about the colour difference. Also, the difference is even more pronouced when the bulbs are mounted in the projectors.
