SaleOn Rechargeable LED Touch On/Off Switch Desk Lamp Children Eye Protection Student Study Reading Dimmer Rechargeable Led Table Lamps USB Charging Touch Dimmer(White) SaleOn Rechargeable LED Touch On/off Switch Desk Lamp Children Eye Protection Student Study Reading Dimmer Rechargeable Led Table Lamps USB Charging Touch Dimmer(white)-707 Charging time-8 Hours Battery Backup-4 Hours(Depends On led Brightness)