If your bird bath is in your favorite evening spot, the 7WW Aurora Water Wiggler is the one for you. The Aurora Water Wiggler will light up at dusk and provide three hours of pleasing colors as the dome slowly shifts through the color spectrum. A sensor on the underside of the Aurora Water Wiggler turns the unit on at dusk. The lights will automatically shut off after three hours and come back on the following evening. The Aurora Water Wiggler will continuously agitate the water to prevent mosquitoes from laying their eggs even when the lights are off. Agitator Operates 24 hours a day on two "D" Batteries.