Linterna Led Cree C8 Xm-L T6 1.300 Lumen

As of September 2009, some HP-LEDs manufactured by Cree now exceed 105 lm/W. Examples for Haitz’s law, which predicts an exponential rise in light output and efficacy of LEDs over time, are the CREE XP-G series LED which achieved 105 lm/W in 2009 and the Nichia 19 series with a typical efficacy of 140 lm/W, released in 2010. By the 18th century the Ojibwa had settled the length of the North Shore approximately as far as the modern Canadian–Minnesotan Border. [Read More]