Large dial analog clock features so much, like a sweeping secondhand and illuminating dial. Its on-demand feature instantly illuminates the dial with a bright blue light by pressing the snooze button. With an auto sensor, this clock activates a green glowing backlight with its night vision technology and can be adjustable to your comfort level. Its accurate quartz movement is silent and is battery operated. Clock also offers a 3.50 inch white dial with metal hands and includes red alarm hand.