Quote Originally Posted by LittleBeast View Post
The HID hi/low movement is so fast that when you flash back and forth really fast (without clicking all the way just enough to go hi and back to lo) it looks like a strobe light because it is instant. It is really fun to play around with. However turning on a whole other bulb while waiting for the other bulb to turn off actually takes quite a long time in comparison, we are talking instant with the HID and .5sec delay with the Halogen, really big difference
You should ALWAYS go for the solenoid method on HIDs. It is much more difficult to start a hot HID bulb than it is to start a cold one. A ballast that doesn't support hot restrike could be damaged by being turned on hot. So instead, you should leave the bulb burning, and just move the optics.