If you are interested in learning about the types of HID ballasts that Iwasaki has offered for the Japanese market, you can find information on this webpage, but you would need to have some way to translate the webpage if you can't understand Japanese such as a built in translator in the web browser or take screenshots of the webpage and send them to Google Translate:

https://www.iwasaki.co.jp/sources/hid_lamp/ballast/