I think you are right. Should use something like this
https://www.amazon.com/Illuminator-Flashlight-Infrared-Adjustable-Hunting/dp/B07LGLB58X/ref=mp_s_a_1_17?crid=3RE7HIFYWIBWV&keywords=ir+flashlight&qid=1643459738&sprefix=ir+fl%2Caps%2C593&sr=8-17#