Exo Terra Daylight Basking Spot Lamp 50w Pack of 4 Exo Terra Sun-Glo Basking Spot Lamp, 50-Watt/120-Volt 50-watt broad spectrum daylight spot lamp for terrariums Neodymium gives terrarium animals and plants a more natural appearance Increases ambient air temperature; Creates a basking area for thermoregulation Stimulates breeding behavior through UVA rays