Can I use any lightstick?

If the show requires the official model, unofficial sticks may be blocked or useless for synced colors.

Usually tolerated as backup; still keep brightness neighbor-friendly.

Field guide · 응원봉 에티켓 — 블루투스·가방·밝기

Lightstick etiquette at K-pop concerts응원봉 에티켓 — 블루투스·가방·밝기

Lightstick etiquette at K-pop concerts

Pairing: Bluetooth modes often open on a schedule; follow staff, not random Twitter codes.
Batteries: Check venue power-bank and battery rules before you pack spares.
Bags: Clear-bag or size limits can block oversized stick packaging.