Blackpink Official Light Stick Is Now Available Again on Amazon US, Go grab yours!
Gmarket, Korea No.1 Shopping Site, and YG SELECT released further info about Blackpink official light stick including its product details and how to use the light stick. See the photos below!
Quick Links - Table of Contents
1. BLACKPINK Official Light Stick Box

2. BLACKPINK Official Light Stick Photo Card
Every light stick comes with a Photocard Set (either Set 1 or Set 1) until Photocard Set supply lasts. Of the 2 Photocard Sets, Photocard set is send out at random.
And will be sent in order of the confirmed orders.
Please keep in mind that they will not be announcing whether or not the Photocard Set supply has run out or not. Make sure to buy right away on May 28, 2018.
3. BLACKPINK Official Light Stick Dimension

4. BLACKPINK Official Light Stick User Guide
Here is how to use Blackpink Official Light Stick:

5. BLACKPINK Official Light Stick Music Reaction Mode
6. BLACKPINK Official Light Stick, Light On/Off
7. More photos of BLACKPINK Official Light Stick
8. Where to Buy BLACKPINK Official Light Stick?
▶RELEASE : May 28, 2018 at 11am KST
▶PRICE : 20,000 KRW
For International Blinks you can buy Blackpink Light Stick here on Amazon US or Global Gmarket (English page)
- YG SELECT Amazon (US): https://amzn.to/2SvV3yu
- YG Entertainment Official Amazon (UK): https://amzn.to/2sxuezI
- Global Gmarket (English): Blackpink Light Stick
Other Amazon websites:
We have bought two light sticks from Global Gmarket today, May 28, 2018:

-YG SELECT : http://www.ygselect.com/
-YG SELECT China : http://cn.ygselect.com/
-YG SELECT TMALL HK : http://ygeshop.tmall.hk/
-YG SELECT Qoo10(SG) : https://www.qoo10.sg/shop/ygselect
-YG SELECT Amazon(JP) : https://goo.gl/2cybuw
-11st : http://www.11st.co.kr/
-G-market : Gmarket Korea
-Auction : http://stores.auction.co.kr/YGeShop
-KAKAOTALK 선물하기 : (Only Mobile) KAKOTALK – 브랜드 – BLACKPINK
-NAVER Smart Store : http://smartstore.naver.com/yge-shop
Blackpink Square Up mini album is available for sale now. We have bought it too, For how to buy Blackpink official album click here: How to Buy BLACKPINK Official Mini Album SQUARE UP, Stores & Details
Source: Global Gmarket, ygselect, Han_Shop_Japan, unboxing video by Jerica, photocards by @jclc_jenn