This is a set of two ring lights: SYNK-STR2020 and ELECTRIC NIGHT 2017. The SYNK-STR2020 ring light was used once at a live performance, and the ELE-NIGHT 2017 ring light was also used once that year and then stored in its case. Both have been confirmed to light up. *Please replace the batteries when using. These items are no longer sold. Please use them at your live performances. access Hiroyuki Takami Daisuke Asakura