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The original device consists of an inflatable LED lantern rechargeable by solar light. [13] [14] There are various models of Luci on the market today. Depending on the specific model, they generally take 7-25 hours of direct sunlight to charge [15] [16] and are able to provide 6-50 hours of light depending on the light mode and model [17] [18]
Solight Design's co-founder, Alice Chun, is an architecture professor interested in solar-powered light. As explained in Chun's 2016 TEDx talk, [4] in dealing with her son's asthma –about 10% of children in New York have asthma [5] –Chun realized that poor air quality caused by pollutants was a growing problem, motivating Chun to find ways to incorporate solar power into daily living.
This is a list of the tallest lighthouses, by tower height (as opposed to focal height, i.e. height of the lamp of a lighthouse from water level).The list includes only "traditional lighthouses", as defined by The Lighthouse Directory, i.e. buildings built by navigation safety authorities primarily as an aid to navigation. [1]
The light output of lanterns is quantified by lumens. Models around 100 lumens only provide enough light for personal use and ambient light; larger groups will want something in the 400 range.
Mobile Point Light: Alabama [15] 119 feet (36 m) Petit Manan Light: Maine [16] 115 feet (35 m) Point Arena Light: California [17] 115 feet (35 m) Pigeon Point Light: California [18] 113 feet (34 m) Grosse Point Light: Illinois 112 feet (34 m) Big Sable Point Light: Michigan [19] 111 feet (34 m) Rawley Point Light: Wisconsin 110 feet (34 m ...
The LuminAID light has a solar panel, rechargeable battery, and a multi-chip LED light. [2] According to its makers, after a full charge, it can deliver 35 lumens for 8 hours or 20 lumens for 16 hours and the battery can be recharged over 500 times, for years of use.