Which kind of device do you use to set up an ultradian cycle (T7 - 3.5h light/3.5h dark) since it doesn't fit with a classic 24h timer clock?

This ultradian cycle is used to induce depression in mice without altering their sleep amount. Unfortunately it's not possible to set up this T7 cycle on a classical 24h timer clock placed in my...

07 July 2016 2,945 4 View