Beta-M

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Some Soviet era lighthouses and beacons were unique insofar as they were powered by radioisotope thermoelectric generators called the Beta M. It was capable of generating 10 watts of electricity, almost enough to power a 12 watt fluorescent light bulb with light output equivelant to a 60 watt bulb. Those reactors still in use are well past the point at which they should be retired, prompting environmental concerns.

[edit] See also

Radioisotope thermoelectric generator

[edit] External links

• Norweigian environmental concerns over Beta-M generators still in use