Give gecko lighting for approx 12 hours a day.
Do not use night lights, UVB varies.
If you ask me, every reptile needs a clear day/night cycle. This basically means your animal should have light during the day, and no light at night. However, specific lighting isn't necessarily a requirement for leopard geckos. They are considered crepuscular, being most active during dawn and dusk. This means when in their natural habitat, leopard geckos don't receive much, if any ultraviolet rays, meaning UVB (ultraviolet B) lighting is definitely not a necessity. With that said, many people have noticed positive changes and effects when their reptiles are given access to UVB bulbs.
The second debate, however, comes in when dealing specifically with leopard geckos, especially albino morphs. Leopard geckos have naturally sensitive eyes, adding additional risk when using UVB - and albinism cause animals' eyes and skin to be even more sensitive to light. For these reasons, I do not use UVB on leoaprd geckos.
Anyway, yes, I suggest you give your leopard gecko some lighting. Whether this is done by adding an LED panel or incandescent light bulb on top of your enclosure, or simply giving your reptile indirect window lighting. Just giving the animal some way of telling night from day is great.
Using bright lights at night is also something I highly suggest you avoid. Even if that red bulb is marked as a "nighttime" bulb, reptiles can, in fact, see this, and are probably not appreciative of it. On top of that, harsh red lights have been known to irritate reptiles in general, according to many experienced keepers.