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Back to the Future” water droplet light, which lights up with a small amount of water for more than a week, is now available in a Back to the Future design.

Posted on 2025-02-102025-03-27 by Editor in Chief

Disaster Prevention Revolution is selling Back to the Future patterned water droplet lights from February 7 to April 29 on Make.

There are a total of 10 types of patterns (9 types + 1 secret type), and they are delivered at random in a gacha style. A blister case, convenient for collection, is also available as an option. Prices range from 2,800 yen for a set of two with blisters to 6,500 yen for five without blisters.

The power source is a magnesium air battery, which lights up when immersed in a small amount of water for 2 seconds. If water is not available, saliva or urine can be substituted; it can be used for more than one week (used up) and can be stored for more than 10 years.

It weighs approximately 21g and is palm-sized at 7.5 x 11.5 x 5.5cm.

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© Source travel watch

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