Reptiles, Amphibians, Light Bulbs Vivaria Carbon Heater 60W (New) It's reassuring to have this as a spare heater in case of bulb failure or malfunction. - Can be used for both day and night, and does not emit light like incandescent heat bulbs, so it does not interfere with the pet's life cycle. Opened once to check for power. Stored at home. Please refrain from purchasing if you are sensitive to used items. Socket: E-26 Will be packaged and shipped using recycled materials. Returns and refunds are not accepted.