Which type of light is commonly used in modern lighthouses?

Which type of light is commonly used in modern lighthouses?

A Fluorescent bulbs
B LED bulbs
C Halogen bulbs

LED lamps were first developed in the 1960s, but it wasn’t until the 1990s and 2000s that advancements in LED technology allowed the production of commercially viable LED lamps.

The correct answer is LED bulbs.

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