Lighting devices

A lighting device comprising:

• a lamp housing having a spherical receiving space;
• a lamp source assembly disposed in the spherical receiving space of the lamp housing;
• a diffuser, and wherein
• the lamp source assembly has a flexible circuit board and a plurality of lamp beads disposed on the flexible circuit board, the flexible circuit board defining a holding cavity in the shape of a cylinder;
• a battery assembly is electrically connected to the flexible circuit board, at least a portion of the battery assembly being received inside the holding cavity of the flexible circuit board, the battery assembly having a battery compartment mated with the holding cavity, a battery disposed in the battery compartment, a first circuit board connected with the battery compartment, a flexible gasket sandwiched between the first circuit board and the battery for protecting the battery, and a switch disposed on the first circuit board and away from the flexible gasket;
• the lamp housing further has a resilient cover corresponding to the switch and capable of activating the switch when pressed by an external force;
• the diffuser is disposed inside the spherical receiving space and received between the lamp source assembly and the lamp housing.