because wanted to address the two things for my hall over 2 floors as a night light when operating the same ceiling lamps 3 lamps with 2 bulbs a 25 Watt. The two night lights meet perfectly adequate their purpose, they go on at dusk and illuminate the hallway (stairway) enough. I never thought that such a luminous efficiency would be possible at this low power. From me a 100% term buy recommendation.
