... backlight indication 5)OEM made welcome Lighting Control Touch Panel Switch Induction touch: Same as iphone touch keyboard technologyBacklight instructions: ... LED backlight, touch key realize switch control, lamp position showed very clear, Close the international ... :less than 0.011W,annual power = (0.011W x 24 hours x 365 days)÷1 KWH = 0.096 KWH ( ...