A lamp, comprising a lamp body (200) and an external connected lamp holder (1000), the lamp body (200) comprising a lamp holder (203) and a first driving circuit board (201) arranged on the lamp holder (203), the external connected lamp holder (1000) comprises a first lamp holder (100), and the first lamp holder (100) is provided with a first socket (101) that is matched with the lamp body (200), characterized in that, it also includes a first female plug assembly (300), the first female plug assembly (300) comprises:
- a first elastic clamping piece (301), arranged in the first socket (101) and being used to connect the positive terminal;
- and a second elastic clamping piece (302), arranged in the first socket (101) and arranged opposite to the first elastic clamping piece (301) to form a first clamping opening (303) for connecting the negative terminal;
- the first driving circuit board (201) comprises a first board body (2011) and a first circuit arranged on the first board body (2011), and the first board body (2011) is provided with at least one first plug (2012) which is matched with the first clamping opening (303), and both sides of the first plug (2012) are respectively provided with a first positive conductive sheet (2013) abutting against the first elastic clamping piece (301) and a first negative conductive sheet (2014) abutting against the second elastic clamping piece (302), and the first positive conductive sheet (2013) is electrically connected to the positive terminal of the first circuit, the first negative conductive sheet (2014) is electrically connected to the negative terminal of the first circuit.