As you probably did, I looked over the user and service manuals but did not find anything. I did not even find the specifications of the bulb. In my experience, Stryker is very proprietary. You almost have to send their devices in for any kind of repairs needed. However, if you have the bulb, you may be able to crack the case and replace it yourself. Should be pretty standard, unplug the unit, don't touch the bulb, etc.
Hope this helps.
TJ Lobato | MedWrench Guru