My wife, daughter and I did a short overnight backpack trip from Timberline lodge, camped on Boyscout ridge and then day hiked to Mt Hood meadows.
While taking my night shots, my daughter and I played with lights on the long exposure pictures.
They had the lights on Mt Hood at the foot of Palmer glacier lit up all night, think it was a snow cat. I wish they would have turned them off so people could get star pictures without the glare.
I used Nite Ize led lights to light up the tent.
They are a 1 led small carabiner light, here is the link for them at REI
They do a great job of lighting up the tent with a glow.