My Plant is TOO Tall!!

I was just wondering why my plant is like super tall with the same amount of leaves as some of the plants I've seen on here & YouTube, yet those plants are like half as tall as mine with same amount of leaves.. Help me out here..

Do I need more light I guess? and closer to the plant? its about 2-3" away from the top, but its only 1 lightbulb.
 
Top