Rechargeable Battery Travel Friendly Portable 3 Brightness Settings 100% Blue Green Light Free The Twilight Red Light Lamp is a portable and rechargeable bedside lamp / desk lamp / table lamp that provides an optimal evening light source that is 100% blue AND green light free. This is the most optimal type of light to be exposed to prior to bed and during the night. Featuring 3 brightness settings with a touch sensor control, an integrated rechargeable battery, flicker free technology, and low EMF. The Twilight Red Light Lamp is a portable and rechargeable bedside lamp/desk lamp/table lamp that provides warm and relaxing lighting that has zero blue and green light. The red light lamp has 3 brightness settings with a touch-control to set the brightness as you need; from a very dim light to use right before going to sleep, to a brighter light that allows you to light up any room to work late into the night without lowering your melatonin and ruining your sleep. This lamp features our proprietary light spectrum, which is flicker-free, has low EMF, and gives off a warm, relaxing, sun orange/red light. Its Not Just Blue light...It's Also Green light... Green light is right next to blue light on the visible colour spectrum, research shows green light also suppress our sleep hormone melatonin, therefore eliminating green light prior to bed is the optimal way to ensure deep and restful sleep. The Twilight Red Light Lamp is equipped with a 1800mAh rechargeable battery which allows you to easily pick it up and use it wherever you like. It will on the battery or you can plug it in permanently via a standard USB charger so that it doesn't need recharging. The gooseneck has a 360-degree flexibility and can be adjusted to the exact position you want. This is especially useful when reading in bed with a partner, working at your desk and need task lighting, or just want to simply direct the light in a particular direction. Features: 100% Blue Green Light Free Pure Red LightFlicker Free TechnologyLow EMFRechargeable 1800mAh Lithium BatteryAdjustable Brightness Levels of 25% and 50%, and 100%50, 100, 200 lumens brightness output360 Degree Bendable Neck CordUSB Charging Cable includedTouch Control to change brightness40cm Long, Fully Extended14cm x 12cm When Rolled Up