Cordless lamp

A cordless lamp comprising:

• a bottom housing comprising an open upper end, which the open upper end of the bottom housing is provided with a clamping groove extending between an inner wall and an outer wall of the bottom housing around a periphery thereof and a snap ring that is arranged on the inner wall of the bottom housing;
• a cover housing comprising an open lower end and interlocked with the bottom housing, wherein the cover housing is provided with a first locking protrusion extending from an inner wall of the cover housing to compliment location of the snap ring of the bottom housing and a second locking protrusion extending from a periphery of the cover housing, wherein the first locking protrusion is snap-fitted with the snap ring making the open upper end of the bottom housing abutting against the open lower end of the cover housing to form a first waterproof structure, and wherein the second locking protrusion is inserted into and fitted with the clamping groove, and an adhesive is filled between the second locking protrusion and the clamping groove to form a second waterproof structure;
• and
• a light-emitting module arranged between the bottom housing and the cover housing;
• the light-emitting module comprising a reflecting cup arranged in the cover housing and provided with a matching hole and a circuit board arranged on the bottom housing and comprising a light-emitting element that is arranged on the circuit board and fitted with the matching hole.