After a little googling I changed my mind and built my own lightbox similar to the one in this URL
It was a few days later, when I discovered that a fluorescent light in my mothers kitchen counter was giving me the ability of a better and easier working environment than a light box could do.
Since a light box has "walls", it can restrict the size of the object you want to capture . Therefore you better make a place in your home for capturing object photos, instead of buying or building a light tent. ( sure if you are a beginner like me ! otherwise I assume that you have adequate equipment which I still dont have :) )
What really matters is a fluorescent top light, which kills the shadows and gives you a better white background.
I think the only advantage of a lightbox is its soft light which can prevent the reflections on the surface of the brighter objects. You can avoid from the reflections via changing the distance of the light , or maybe putting a transparent fabric on front of it between the light and the object ( dont start fire please ! )
Thank you very much for reading.
Hope to hear your comments ...