The Vango Rocket 120 Bluetooth Lantern is a high quality camping lantern, using high-strength CREE LEDs to produce a bright light, it has a low setting that uses 40 Lumens or a high setting that uses 120 Lumens. The Rocket lantern includes a built in rechargeable lithium ion battery which can be charged using your car adaptor so you will never have to worry about buying batteries again. You will then be able to power your phone or tablet from the lantern's battery. Not only does this lantern give you a super bright light, you can take full advantage of the bluetooth speaker function built into the lantern - making this a high quality, very versatile lantern for any camping trip.