Overview Strobe Light Bulb - STC-77 - North American Signal Replacement light bulb for strobe lights Custom Field Product Reviews Write a Review Write a Review × NORTH AMERICAN SIGNAL Strobe Light Bulb - STC-77 - North American Signal Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *