Showcase lamp

A showcase lamp comprising:

• a lamp body (10) having a light-emitting module (11) therein, and the lamp body (10) is externally provided with a first terminal (100) draw out from the light-emitting module (11);
• and
• at least one upright stanchion (20), the upper end of the upright stanchion (20) supports the lamp body (10), and the lower end of the upright stanchion (20) can be detachably fixed on the showcase to be installed;
• wherein the upright stanchion (20) is a hollow rod, and the upper end of the at least one upright stanchion (20) is provided with a second terminal (200) for communicating with the first terminal (100), and the lower end of the upright stanchion (20) is provided with a third terminal (300) for connecting external power supply or for interconnecting with adjacent lamps, the upright stanchion (20) is built-in with wires (40) connecting the second terminal (200) and the third terminal (300);
• wherein, the lower end of the upright stanchions (20) has a clamping member (22) for fastening the upright stanchions (20) to the showcase to be mounted;
• the clamping member (22) includes a threaded through tube (221) with external thread and a precession nut (222) sleeved on the threaded through tube (221), and the threaded through tube (221) is provided with a resisting portion (223) which clamping fits the precession nut (222).