It seems that the "zap lamp" you're referring to is actually a metaphor for a device or object that can be activated or turned on by using a zap or shock, as one would do with a remote control to change channels on a TV. In this context, zap.stream might refer to a streaming media service where the user can quickly switch between different content offerings. However, without more specific context, it's difficult to say for certain what zap.stream is or does. If you have additional information or clarification about these terms, please let me know and I'll do my best to help answer your question.