This cool Color Changing Tornado Lamp has been switch adapted to accept a standard switch. Press your switch to watch the water swirl as it changes colors from red, to blue, to green. Release your switch to stop. You can also activate the lamp by turning it to the on position for use without a switch. Awesome for sensory rooms. Increase visual attention, cause-effect, language skills, and have fun! Measures approximately 10" x 3.25" x 3.25". Requires 3 AA batteries, not included. Has a durable plastic globe for safety. Price is per each.