The green lamp is 8″ x 4″ and powered by two AA batteries which makes it easy to put on a shelf or anywhere electricity is not an option. So far i’ve gotten about 30 hours of use from one set of batteries. The pink-purple-ish night light is 9″x5″ and powered by a small solar charged LED unit. The panel is hidden in a false bottom created with thin strips of black glass. The unit is removable and can easily be recharged. Different colors and shapes of this lamp will be available for sale in January.