But rotational positioning's LED lamp

The utility model discloses a but rotational positioning's LED lamp, including mount pad and support, install LED light source subassembly in the support, it is used for the bayonet socket be connected with the mount pad cooperation through being provided with at support both ends, the bayonet socket outside is provided with the shell fragment, shell fragment upper end lateral wall is formed with bellied positioning head, the mount pad both ends are provided with the connector, the connector outside is provided with a plurality of constant head tanks with positioning head looks adaptation, lamps and lanterns installation back positioning head joint is in one of them constant head tank, when the outgoing angle of light is adjusted to needs, it is rotatory only need to hold the support, make the positioning head card go into the constant head tank of suitable angle, thereby make the rotatory angle of support fix, make the outgoing angle of light adjust according to user's needs, and thus usage by users is facilitated, the use value of product has been improved.