Multifunctional shower head assembly

A shower head assembly comprising:

• a shower head having an inlet portion, an outlet portion, and a plurality of water outlet holes located at a front face of the outlet portion;
• a phototherapy unit detachably coupled to the outlet portion, the phototherapy unit including a housing surrounding the shower head;
• wherein the phototherapy unit comprises a plurality of light-emitting elements;
• and
• wherein the shower head and the phototherapy unit are configured to deliver the phototherapy during a shower.

A phototherapy unit for a shower head, comprising:

• a housing configured to be mounted on or integrated with an outlet portion of the shower head;
• a lamp board having a plurality of light-emitting elements disposed in the housing;
• a power supply electrically connected to the light-emitting elements;
• a waterproofing structure enclosing the power supply and an electrical circuitry within the housing;
• wherein the waterproofing structure prevents water ingress into the electrical circuitry during shower operation;
• wherein the outlet portion includes a connection position formed with a first guide groove, a second guide groove, and a locking groove;
• and
• wherein the phototherapy unit includes a locking protrusion configured to enter the first guide groove, travel into the second guide groove, and seat in the locking groove during rotational engagement.