The amount of energy contained in a gram of matter was impressively demonstrated by Albert Einstein. The latest micro lamp, the LED Lenser K3, may not look like much in terms of power, high technology, and brightness. However, anyone who flips the switch experiences a bright wonder. Weighing only 34 grams and measuring less than 7 cm in length, this little lamp is a dwarf, yet its efficiency and light output are worthy of a giant. The lamp is equipped with the Blue Moon Focus System. A blue circle shines around the homogeneous light.