When power cycling the bulb, is a new token necessary?

I have developed an app for the bulbs and am wondering if when I power cycle the bulbs (because they are continually dropping) and then re-connect them to the lifx app, do I need to generate a new token for my application connect to them?

The token applies to the users account, not the bulb. As long as the bulb is onboarded to the same account the same token will apply.