More light out of less batteries

In Western economies a breakthrough is expected in the development of ever more effective Light Emitting Diodes. These components develop with the speed similar to computers: Fast improvement of functionality and steep reduction of cost in a short time.
In the circuits of the NightReader as developed and used up to now the LEDs are not the limiting factor regarding cost. Now it is the cost of generating electricity. With the NightReader working on near empty discarted batteries, Demotech could make a sort cut through this problem.
However we should prevent any loss of tension or current in the circuits used. Today Jos Knoop told me he found the right components to reduce the tension almost by half, as needed from the batteries to let the LEDs function. This means enormous progress for practical use. The chance to find four still useful batteries is far greater then the six to eight batteries as needed now.
I established a contact today among Jos Knoop and Jos Spanbroek of "De Spelerij". Jos Spanbroek has an interest in playfully used LEDs powered bij solar cells. He expects he can arouse a lively interest in the mind of young people if they find out how these LEDs function and how usefull they are. Jos Knoop will prepare a setup for demonstrating what can be dome in this field.
I am very happy with this cooperation, as I can learn a lot of the possibilities of a more general use of LEDs for illumination.