LightCap 300 is a solar lantern and BPA-free water bottle that can also be used as a waterproof storage container. The bottle holds 32 ounces (.94 liters) and is dishwasher safe. The cap features a solar cell that accepts and stores a charge for nighttime use. Four bright white LEDs provide enough illumination to read by and a single, red LED makes for a great night light that is popular with the kids. Automatic light sensor is built in to allow for daytime charging. The 3 inch (76 mm) cap is red.