The revolution of light, the breakthrough in modern LED research. Only the size of a finger, David 19 sets a new benchmark for LED technology, 59 g light art and economical. Packed with revolutionary optoelectronics, the new 1.25W power-chip pumps 42 lumen of pure white digital light via a highly effective DC/DC high-tech transformer in a split second. This complies with 16 standard LEDs and presents optoelectronical high tech. David 19 creates super bright light for up to 15 hours. The torch needs only one AA battery instead of high price lithium batteries. One hour super bright light costs only a few cents. With a service life of up to 50,000 hours, the diodes will virtually last a lifetime.