How long can you keep food under a Heat lamp?

Food can generally be kept under a heat lamp for about 2 to 4 hours, depending on the type of food and the temperature of the lamp. It's important to ensure that the food stays at a safe temperature of at least 140°F (60°C) to prevent bacterial growth. After this time, food quality may decline, and it may be safer to discard it to avoid foodborne illnesses. Always monitor the food and check for any changes in texture or aroma.