Write the next sentence in this paragraph:

How to use solar energy while camping 
Use a solar lantern to provide light. 
The k-light solar lantern, made by pisat, is the same size and weight as a full can of soda and has two output settings-one that uses 16 leds or the economy mode that uses 8 leds. It is charged through a separate solar panel and the higher output provides one hour of light for each hour of charge.

pick from the following. (I). In the lower mode, it provides two hours of use for one hour of charge. For hiking trips, get a solar-powered backpack. (II). ( most cooking programs will charge a component to generate a charge. ) Get a small disk opener and 20 charging stations. (III). And it uses 15 leds while trying to replicate other types of lamps. Check that you have enough battery to power all your vehicles. (IV). The output output of the solar lantern activates the battery. The entire solar panel takes place on a long fence and is covered in modular plate plastic.
(I).