Exo Terra Sun-Glo Neodymium A19 Lamp, 60-Watt (4 Pack) Pack of 4 - 60-watt broad spectrum daylight lamp for terrariums Creates heat gradients for thermoregulation Increases ambient air temperature; Creates a basking area for thermoregulation Bulbs are coated in Neodymium A19 bulb; Can be combined with Night Glo or Heat Glo bulbs for 24-hour cycle