Are Chinese bike lights any good? Massive comparison & test

I gathered 7200 lumen of lights for An in-depth review / guide to a bunch of Chinese bike lights from Gaciron, Towild and Xiesheng.
//Links//
-Amazon US:
Gaciron W10 - https://amzn.to/2NRWTsK $9.99
Gaciron 400 - https://amzn.to/2PTOub6 $28
Towild 600 - https://amzn.to/2PURuny $22
Towild 700 - https://amzn.to/33qFKgz $59
Towild 1600 - https://amzn.to/2pTleXc $109

-Amazon UK:
Xiesheng 300lm - https://amzn.to/2K24AMd £14 with rear light too
Gaciron W10 - https://amzn.to/34BpJV8 £12
Gaciron 1600 - https://amzn.to/2K2YESV £44
Towild 600 - https://amzn.to/2WWeRi7 £21
Towild 1600 - https://amzn.to/2PZ07NP £54

-AliExpress:
Gaciron W10 - http://bit.ly/2Crl0cw $14 on 11/11
Gaciron 400 - http://bit.ly/2oY5GkB $17 on 11/11
Gaciron 1800 - http://bit.ly/33oyAJH $79 on 11/11
Towild 600 - http://bit.ly/34HGjms $22 on 11/11
Towild 700 - http://bit.ly/2CsBLUE $27 on 11/11
Towild 1600 - http://bit.ly/34HASDS $41 on 11/11
Towild 1800 - http://bit.ly/2oXdDXe $79 on 11/11
Xiesheng 300LM - http://bit.ly/2NMEJJ6 $5 when bought in bulk

//Music//
Full Power by ZAYFALL   / zayfallmusic  
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream: https://bit.ly/_full-power
Music promoted by Audio Library    • Full Power – ZAYFALL (No Copyright Music)  

//Note//
All opinions are that of the presenter. All lights in this video were provided for free, but no money was taken for making this video. Amazon links are affiliate links but it doesn't effect your price one bit and it helps support the channel. :)