I do not think they are energy inefficient. When I am building models in the basement in the winter it gets chilly but I have 5 stand alone and desk lamps surrounding my work station. 100w bulbs put out enough heat to take the chill off.
“I do not think they are energy inefficient.”
We are using more energy in the kitchen. Before we switched it was too hot in the kitchen to keep the lights on. But at least now my wife can see!