E-maxi Luminator Light Base, 31 White LEDs, 8 inch diameter The E-Maxi Luminator light base 31 white LEDs No slip grip top, sleek finish, 31 white LEDs On/off switch on side of unit 8 in. diameter x 1.375 in. high (20.32 cm x 3.5 cm) Requires 3xAA batteries(included and replaceable)