There was a thread on here a while ago from someone who services clippers for a living, they had horror stories about these cheap imitation brands of clippers. They are usually of poor quality and potentially dangerous. You get what you pay for IMHO.
I thought that would be the case as seems too cheap.
I also read about dodgy clippers from China that could end up electrocuting you and having read the background of the company supplying them, it would seem they have an awful lot of offices in China!!
There is a post by TheEngineer about cheap clippers. He says they may not conform to safety standards, may not have spare parts you can buy and might be electrically unsafe.
Lets face it, if someone does get electrocuted or burn the horse, it'd be difficult to prosecute someone in China.