Instructions
Take your species of turtle into consideration. Most species of turtles need some sort of lighting, but a few such as nocturnal or a few rainforest species don't. Talk to your reptile vet for more information.
Figure out what kind of bulb you want to use to provide heat for your turtle in their tank. A few options are reptile heating lamps or even regular light bulbs. Focus on the heating bulb onto your turtle's basking area so the temperature stays at about 80 degrees (it may be a little higher or lower depending on your turtle's species).
Choose your bulb to get UV rays to your turtle. Most experts recommend a white bulb designed for reptiles since these emit the most UV rays. One good option is a full-spectrum light. Make sure there's no glass between the bulb and your turtle since this will filter the UV rays.
Consider purchasing a hood that allows you to install different types of bulbs, saving you money and the headache of setting up multiple hoods or lamps.
Replace light bulbs every 6 months to prevent the chemicals inside them from breaking down and not producing the light your turtle needs.
How to Use Turtle Tank Lighting Systems
Turtles need lighting in their tanks, not only for heat but also so they can get UV rays they'd normally get from the sun. Turtles need Vitamin D (which comes mostly from the sun) to prevent illness and metabolize calcium. Installing a turtle tank lighting system is easy if you keep a few things n mind.