Idiots guide to grow lights

Yes, I have indeed bought some for the first time. They arrived today so I set them up in a spare room which isn't used. I figured the lights would irritate me if I could see them.

Looking through the thread I see that I've bought the same system as some of you, the long adjustable batons with different colour lights. That's a relief. Just need to find a suitable box to line with tin foil to fully join the club.