Lighting and heating:
Tarantulas are nocturnal creatures, thus they do not need lighting. Direct sunlight or any source of bright light is highly discouraged. A UV bulb can be used for display cases but must not be left on for a long period. Only switch it on when you’re viewing and switch it off when you’re done.
In tropical areas, heating is not needed. Room temperature will do quite well. However, in areas where winter season is applicable, a large room heater can be used during winter. Basking lights are highly discouraged because it can dry out the enclosure and the tarantula may not sense the heat and die. Heating pads that stick to the bottom or side of the tank are also discouraged. Tarantulas cannot sense hot spots and may die of dehydration.
Generally, whatever temperature you are comfortable with works fine for your tarantula. Tarantulas are more susceptible to heat than cold.