You might be surprised to find that there aren't that many lighting stores selling bain marie lamps.
What is a bain marie?
A bain marie, a type of heated bath, is a piece of equipment used in science, industry, and cooking to heat materials gently and gradually to fixed temperatures, or to keep materials warm over a period of time.
Where are these used?
Bain maries are used in a range of industries but most often you find them in hotels. Next time you're helping yourself to the buffet breakfast at a hotel, take a look to see what is keeping the food warm.
What are bain marie lamps?
Bain marie lamps are high wattage lamps that operate largely to keep the food warm. They are primarily used for heat rather than light (though they do also emit light).