Lifi power management

A node for use in a LiFi system to provide LiFi signals to at least one endpoint device, the node comprising:

• a visible light source for emitting modulated visible light and non-modulated visible light to provide illumination;
• and
• an infrared light source for emitting modulated infrared light;
• wherein the node is configured to:
• output a LiFi signal at a first one or more frequencies via the infrared light source for reception by said at least one endpoint device;
• and
• wherein the node is configured to, in response to receiving input to provide illumination, when transmitting the LiFi signal via the infrared light source, turn on the visible light source to provide said illumination and automatically transfer an output of the LiFi signal from the infrared light source to the visible light source by:
• outputting the LiFi signal at said first one or more frequencies via the visible light source for reception by said at least one endpoint device;
• outputting at least one of a first indication via at least one of the infrared light source and a second indication via the visible light source, wherein the first indication and the second indication indicate that output of the LiFi signal will be transferred to the visible light source;
• and
• turning off the infrared light source.