帮忙把一下文字翻译成英语（人工翻译），谢谢！！

Help the purchase manager to deal with LED problem and control the price cost;
Work hard to communication with supplier for the quality of LED , to make sure that all the parts are ok;
Work hard to discuss with engineer for the voltage of electronic components that every new product needs;
Make sure that the lumen value is in the scope by clients;
Make sure that the cover and so on of LED will not have black out or flash light problem, if happen this problem, tell engineer at once, to solve the problem for clients soon;
Been with Boss from Turkey to ZHongshan,the Nanhai Sea and so on for seeking LED cover supplier, to make sure that we have enough suppliers.

这是我有时间才给你翻译的哦。