hi chris, thanks for replay. the problem is I have 2 object.
both of the object has reflectivity, one from hdri image and the other one from lights, but the lights one gets reflictivity from hdri image as well(I dont want this) looks very messy , so I turn the reflictivity in second objects down to 0 (that is what gubar says), but now I dont get reflectivity at all. so I need help guys,

how can I apply HDRI image only to one object?

thanks