Note that the Warm White Bluetooth® Garden Light Controller [CLBW60] and the RGB Colour Bluetooth® Garden Light Controller [CLBRGB60] can not be shared across multiple devices using the iGardener™ app. These controllers are not able to connect to multiple smart devices or phones at once.
The RGB Colour Wi-Fi Garden Light Controller [CLXRGB60] can be shared across multiple devices using Holman Home. Each user will have to download Holman Home on their smart phone and be given permission by the main user of the controller. Permissions can be managed and shared through: Me > Home Management > My Home > Add Member.