Morse lamp
noun
a blinker lamp for signaling in Morse code.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for morse lamp
For instead of using the electric Morse-lamp we used a small paraffin lamp, making the dots and dashes by holding a hand in front.
Gun running for Casement in the Easter rebellion, 1916|Karl Spindler