"battery voltage: 3.7v
input: 5v----1a
battery capacity: 4000mah
power and using time: weak wind - 4hours. middidle wind - 2.5hours. strong wind -1.5hours.
working mode - usb or built-in battery. lighting source power - 0.6w. effective wind speed - 4.5m/s. led light soft comfort cool double mode power supply. model no: dp-7626
led light soft comfort cool this rechargeable lamp & fan comes with dual functions that offer you cool air while giving you bright stable light that aids you to see your environment.
it is ideal for homes and students to have at hostels as it offers you clarity of light to see your pathway when there is blackout from the main power or when reading. it offers you super bright light from the led light that does not transmit heat but allows you to see your way and read at night while providing you with fresh air. it can serve as wall fan as well."