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A dyno torch, dynamo torch, or squeeze flashlight is a flashlight or pocket torch which generates energy via a flywheel. The user repeatedly squeezes a handle to spin a flywheel inside the flashlight, attached to a small generator/dynamo , supplying electric current to an incandescent bulb or light-emitting diode .
These flashlights may be designed to be impact resistant, weatherproof, and to float. [4] [5] Other models include features such as a solar cell phone charger, [6] an AM/FM radio, or a siren to call for help in an emergency. Some models include a hand crank dynamo for charging at night. [7]
Freeplay devices have captured acclaim on multiple occasions. The initial clockwork radio won the "BBC Design Award" in 1996, [11] and the Design Council's Millennium Product Award. [12] The "Weza" foot-powered generator won an "Innovation in Water, Sanitation and Energy Services for Poor People" award from the World Bank in 2006. [13]
Victrola Retro Wood Bluetooth Radio. $43 $70 Save $27. ... a backup charger and it's a flashlight! Nearly 42,000 five-star Amazon shoppers agree this dynamo is one to toss in your tote ASAP.
A set of modern LED flashlights. A flashlight or electric torch (Commonwealth English), usually shortened to torch, is a portable hand-held electric lamp.Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes (LEDs) since the early 2000s.
A Crookes radiometer in action. The radiometer is made from a glass bulb from which much of the air has been removed to form a partial vacuum.Inside the bulb, on a low-friction spindle, is a rotor with several (usually four) vertical lightweight vanes spaced equally around the axis.
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