A non-directional self-ballasted LED bulb, comprising a connector (1), a housing (2), an LED light source module (4), a radiator (3) and a light-transmitting cover (5), the housing (2) comprising a first housing (21) located outside the housing (2) and a second housing (22) inserted in the first housing (21), the inner surface of the first housing (21) being in contact with the outer surface of the second housing (22), and the first housing (21) being in snap-fitted connection with the light-transmitting cover (5); an annular groove (34) is formed between an extending wall (32) and a connecting wall (33) of the radiator (3), and the second housing (22) is fitted on the connecting wall (33) so as to fix the radiator (3) on the second housing (22). The non-directional self-ballasted LED bulb has the characteristics of high security, a simple and compact structure, easy assembly and good impact resistance.
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