Member ages
Lightsum Member Ages and Birthdays
Lightsum member ages and birthdays ranked oldest to youngest, from Sangah at age 23 to Yujeong at age 22.
Oldest to youngest
| Rank | Member | Age | Birthday | Position |
|---|---|---|---|---|
| #1 |  SangahMember | 23 | Sep 2, 2002 | Dancer, Rapper |
| #2 |  ChowonMember | 23 | Sep 16, 2002 | Main Vocalist |
| #3 |  NayoungMember | 23 | Nov 30, 2002 | Main Vocalist, Lead Dancer, Center |
| #4 |  HinaMember | 23 | Apr 7, 2003 | Sub Vocalist |
| #5 |  JuhyeonMember | 22 | Apr 8, 2004 | Main Dancer, Lead Vocalist |
| #6 |  YujeongMember | 22 | Jun 14, 2004 | Sub Vocalist, Maknae |