Please look over the pictures before bidding, thanks. All the candle style lamps use two penlite batteries. Three of the lamps have LED's for illumination. The fourth lamp uses a mini-3volt bulb. Included is an unopened package of two bulbs which is new old stock, never opened or used. The LED keyboard light plugs into the computer's USB connector. To turn it on and off just slide the Astronaut's helmet Visor. Slide visor up for ON and down for OFF. It can also be used as a night-light if plugged into a USB charge device. Shipping will be by USPS Ground Advantage within the U.S.