Newbie at Lights, will cheap Chinese lights work?

I live in China.

My friend gave me a contact for a factory in Guangzhou

I told my budget and the seller put together a list of lights for me. However, I just checked what ligths actually cost on sites like Thomann and the prices the Chinese factory gave me on their products are waaaaaaay cheaper. To the point I'm worried it all junk really.

However, my situation is this:

- Outdoor Rave

- I'll only use these lights 1-4 times a year

I want the lights to work and do their thing. However, this is not for heavy duty, I'm not hauling this setup around every weekend.

Yes, I could look into renting here, but we often travel far for these raves so I'll end up pay for days not even using them. I think it's better just buying some. But I will look into the renting thing also.

Can these cheap Chinese lights work? LED Spots are 300rmb, moving headlights 1500rmb... I mean regular prices for these things are x10 on Thomann!