One of the benefits of using LED technology is the fact that one can use batteries almost exclusively. No more travelling with extension cords! But these days travelling by air with Li-Ion batteries is challenging to say the least. Now, Socanland has the 'Paperlight", a thin 1x1 LED panel that can be powered by NP-F style batteries ... a smaller, more portable power source when travelling. The lights can also be plugged into AC or use v-lock or gold mount batteries when not travelling. Flexibility!!!