how far is the quadratic turned up??? Quadratic is not default in Maya. The decay rate will be based from Intensity over distance. Just turning the light up to 10 will not be enough necessarily because of the distance the light may be away from your objects

Ive attached a pic of what I mean, you can see the distance of the lights to the object, it isnt far at all. You just need to really turn the lights up

hope this helps

Jay