How can i sell the led lamp abroad through Alibaba........
I suppose you have registered on Alibaba.com
Alibaba can teach you how to sell:
As a Free member (unverified), the chances to be found for potential buyers are low.
Golden suppliers (paid member) usually are the first to appear on searching.
You can try anyway, but my suggest is to Optimize the Title of your item, description and tags of every product you want to sell.
The tip you must follow is to make a usual research and copy the titles, descriptions, ictures of the results of your competitors and optimize.
Hope this helps.