Studio set up
For this rendering, i ve used 5 rectangle lamp and a bulp to light up the inner cap. Ive also have set up an environment so that the bottom environment will act as the desk of the lamp. as u can see, the rectangle on the left of the lamp is the camera that i put up as the scene.
As we can see in the render table, ive set the output image to be at 1600x1200 px. using a high accuracy, with value about 5-6 for reflection and activate the shadow, ive managed to render image below.
The rendered image have its reflection with the lamp base a less reflection on the top of the lamp. although the desk didnt look so real, but the lamp i think is close to real view.
Here is one image that i really satisfied about the rendered image but its use a different material environment. the lamp 100% nice with is reflection from the bottom to the top of the lamp.