Arcadia FD3P38 D3+ 12-Percent Reptiles Lamp, 38 Watt, 42-inch This comes in other sizes, but I've only referred to this size as this is perfect for a 48 inch vivarium.
Arcadia ACU36 Ultra-Seal Controller, 36/38 Watt
Reptile Vivarium Ceramic Bulb Lamp Heater Holder ES (E27 1" 25mm)
KOMODO Basking Spot Lamp ES, 100 Watt
Exo Terra Ceramic Heat Emitter, 100 Watt
Lucky Reptile HDS-100 Dark Spot, 100 Watt