[Indoor or Outdoor] -- With waterproof design, it can be used outdoors. The super powerful suction cup can make the lamp firmly adhere to the glass window. Added hook design, which can be used as a Christmas tree decoration. [Warm Light] -- Copper wire material, leading conduction technology. Powered by three AAA batteries, safe and reliable(Battery not Included). The warm white light design adds a warm atmosphere to your shop windows, home living room, etc. It is a perfect Christmas decoration. [Pack of 2] -- The shape design of the North Star perfectly fits the Christmas atmosphere, and the different shapes of the two also give you a variety of choices. [Timing Function] -- Built-in six-hour timer, effectively saving power. [Lighting Effects] -- Not only are there constant lighting effects, but there are also breathing flashing lighting effects, giving you different lighting atmospheres. [Our Service] -- If you have any questions about our products, please feel free to email us, we will reply you as soon as possible.