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Strip LEDs are available in different colours powered by direct current (DC) source. These LEDs are available as surface mount devices with... -
Many electronics hobbyists will have experienced the following: you try to finish a project late at night, and the mains supply fails. ... -
Many battery powered devices use two AA alkaline cells. Often you will not know when it is time to replace the batteries until the devic... -
Many times the hobbyist wants to have a simple, dual power supply for a project. Existing powersupplies may be too big either in power ou... -
We are surrounded by battery operated equipment of all kinds, and this array is growing still. Manufacturers and designers lean over backwa...
