Just collect all the photons from the moon using solar panels (moon panels?) Store the energy in a battery. When you have a big enough charge use it to light wh

Just collect all the photons from the moon using solar panels (moon panels?) Store the energy in a battery. When you have a big enough charge use it to light whatever you want. Sure, it isn't practical and it is not what you guys are really talking about, but you can definitely make something hotter than the moon, as long as you are willing to cheat.