I have a three bulb exo terra compact hood on my 90cm viv which is fitted out with 3 sun glo 2.0 bulbs.
I find that when more than one of the bulbs is switched on my Leo constantly hides from it and doesn't thermoregulate as much.
Luckily the exo terra tops have two power switches so I can have just one of the bulbs on, the other two bulbs lit or all three.
I think it will mostly depend on your gecko and how they like things.
People say that some morphs like bright lights less than others so just see what works best.