Your help will be of great help for me

Hi, guys! I haven’t started my thesis yet, but December 22th is the deadline. Could any of you give me some suggestions? The thesis is about laser technology and the relevant products, such as laser beam pointer pens, so I chose green laser pen as the subject. Searching on the Internet, I found there are a variety of laser pointers like 30mW Green Laser Pointer pens. Besides, some laser pens are for some specific purposes like high power green laser pointer pens can weld metals. Some kind-hearted wholesalers even gave me some help with my thesis, but not all the people who wholesale laser pointer are willing to help me and I do not think it is enough for me, so could anyone who has ever bought wholesale laser pens or used 50mw green laser pens give some help pls? I’m looking forward to your reply. Thanks a lot!