Like the swarm robot team you have arrived at a remote planet but unlike that team find yourself stuck on the planet's surface and find you need a light to work on your escape plans during the night time period. You have a solar lamp kit but need to maximise how much light you can get per charge on to your work area. You need to design a simple effective Solar Lantern that includes:

From the materials supplied and any other materials you may gather together (not supplied) work out a way for your Solar Lantern to light a room. You cannot leave the surface until you can plan at night. The Lantern should throw out a good eve night for as long as possible (you will need to measure how long it lasts for on a single charge.

As you are the first explorer to get stuck on this planet you will need to document not only WHAT you did but HOW you did it and most importantly WHY you made the choices you did. 

Your entry will be judged on the quality of your documentation as much as actually creating the LAMP.