Digest>May/Jun 2014

Photo By:


Bill Edwards

Photo Caption:

These are bulbs that were actually used in the lens at the lighthouse. The larger bulb on the left is a Metal Halide filament used circa 1968-70.  The smaller rectangular bulb on the right is a T-20 circa 1950s.  Both light bulbs are 1,000 watts and generate 1.3 million candlepower when magnified by the 1st order Fresnel lens.  
Back to the edition of: May/Jun 2014


“Cinderella Has Come To The Ball...”
Back to the edition of: May/Jun 2014

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