LIGHTSUM
韓國 Official roster: 6（6 birthdays recorded）
member Birthdays
| Birthday | member | Other spellings |
|---|---|---|
| September 4 | SANGAH （윤상아） | SANGAH, Yoon Sang Ah（隊長・饒舌・領舞）, 相雅 |
| September 16 | CHOWON （한초원） | CHOWON, Han Cho Won（主唱）, 霄瑗 |
| November 30 | NAYOUNG （나영） | Kim Na Young（主唱・領舞）, NAYOUNG, 娜英 |
| April 7 | HINA （히나） | HINA, Nagai Hina（副唱／日籍成員）, 陽菜 |
| April 8 | JUHYEON （주현） | JUHYEON, Lee Ju Hyeon（主舞・副唱）, 珠賢 |
| June 14 | YUJEONG （유정） | Lee Yu Jeong（副唱）, YUJEONG, 宥姃 |
Roster source: LIGHTSUM JAPAN OFFICIAL FANCLUB PROFILE（CUBE 授權，STARRY 營運） (obtained 2026-08-28)
member Age Ranking
This site has birth-year data for 6 out of 6 member (member with only month/day and no birth year are excluded, as age cannot be calculated). Oldest: SANGAH (24 (in 2026; 23 before September 4)); youngest: YUJEONG (22 (in 2026; 21 before June 14)).
| Rank | member | Birthday | Age |
|---|---|---|---|
| 1 | SANGAH | September 4, 2002 | 24 (in 2026; 23 before September 4) |
| 2 | CHOWON | September 16, 2002 | 24 (in 2026; 23 before September 16) |
| 3 | NAYOUNG | November 30, 2002 | 24 (in 2026; 23 before November 30) |
| 4 | HINA | April 7, 2003 | 23 (in 2026; 22 before April 7) |
| 5 | JUHYEON | April 8, 2004 | 22 (in 2026; 21 before April 8) |
| 6 | YUJEONG | June 14, 2004 | 22 (in 2026; 21 before June 14) |
This page lists all 6 member per LIGHTSUM's official roster; 6 of them have an individual page on this site (our inclusion criterion is "has anyone held a support event for them, or is there a verifiable identity/birthday source"). The rest are marked "roster-only entry" — listed in this table only, with no individual page. Birthdays are listed only when a verifiable source is found; otherwise marked "no verifiable source obtained," never filled in by guesswork. Found an error, or have a verifiable official source? Please email service@joelin.cc. (open a report email)
Want to hold a support event for LIGHTSUM?
Group support is commonly held around debut anniversaries and concerts, with member birthdays each following the dates in the table above.
How & where to hold a photo booth event → Custom photo booth frame / full-booth booking →
FAQ
- What are the birthdays of LIGHTSUM's member?
- LIGHTSUM's official roster has 6 member in total; the ones with a verifiable birthday on this site are:SANGAH September 4, CHOWON September 16, NAYOUNG November 30, HINA April 7, JUHYEON April 8, YUJEONG June 14. Every birthday's source is cited both on this page and on the individual's own page.
- How many member of LIGHTSUM are on this site?
- LIGHTSUM has Official roster: 6, of whom 6 have a verifiable birthday recorded on this site. This page lists all 6 member per LIGHTSUM's official roster; 6 of them have an individual page on this site (our inclusion criterion is "has anyone held a support event for them, or is there a verifiable identity/birthday source"). The rest are marked "roster-only entry" — listed in this table only, with no individual page. Birthdays are listed only when a verifiable source is found; otherwise marked "no verifiable source obtained," never filled in by guesswork. Found an error, or have a verifiable official source? Please email service@joelin.cc.
- What is the age order of LIGHTSUM's member? Who is the oldest?
- Among LIGHTSUM's member, this site has birth-year data for 6 out of 6(member with only month/day and no birth year cannot have an age calculated, and are excluded from the ranking.) Ordered from oldest to youngest: SANGAH（24 (in 2026; 23 before September 4)）, CHOWON（24 (in 2026; 23 before September 16)）, NAYOUNG（24 (in 2026; 23 before November 30)）, HINA（23 (in 2026; 22 before April 7)）, JUHYEON（22 (in 2026; 21 before April 8)）, YUJEONG（22 (in 2026; 21 before June 14)）. The oldest is SANGAH, and the youngest is YUJEONG.
View this page in Chinese → Back to group index Birthday calendar