3 ms·
Any particular reason that you suspect that UV and IR are important, or is this just pure speculation?
by dietrichepp 11y ago
Any particular reason that you suspect that UV and IR are important, or is this just pure speculation?
- kristiandupont 11y agoNo, that's just speculation.
- collyw 11y agoI took an interest in this a while ago after travelling a lot then coming back to Scotland. I seem to remember blue light being recommended. Moved to Barcelona and never really thought about it since.