Talk:Ultraman Dyna (character)/@comment-27977344-20160611061439/@comment-5527544-20160612180751

The time limit exists only on Earth like planets, or places of extreme darkness. Out in space, sol ong as they are in a solar system, some very intense rays of light will be hitting them. Since they can fly at faster-than-light speeds or simply create wormholes, journeying between systems is not a problem.

In Ultraseven, Seven fought in the dark of the moon (the darkside hidden from the sun). It was such total darkness that his energy drained very fast, so it's not just being on Earth.

Ultras live on a planet that is literally as bright as a star, thus, that is what their bodies are accustomed to. On Earth, it is nowhere near that bright. However, how much energy they use up depends on how big they are. Ultras have been at human size and operated for a long time, example Tiga versus the Raybeak. In Ultraman Max, it was stated and shown that growing larger than an Ultra's 'natural' size caused them to use up their energy much faster, and thus a shorter time limit. However, some like Ginga and Victory, don't seem to have that problem, but for most known Ultras it seems to be an issue.