<p>PURPOSE: A street light system is provided to perform a VoIP communication outdoors using an internet terminal and an access point. CONSTITUTION: A street light system comprises a plurality of street lights(20a-20d). Each street light comprises a light source, a light source driver, an access point, and a controller. The light source is comprised of one or more LEDs. The light source driver drives the light source. The access point communicates with an internet terminal(200) by wireless. If the wireless communication is performed between the internet terminal and the access point, the controller controls the brightness of the light source by controlling the light source driver. The internet terminal is an internet phone.</p>
