The original one that I bought from brightbikelights, when they first arrived on the market before the really cheap knock-offs arrived, is still going strong to this day. £78 as compared to £13.99.
The MJ858s from Magicshine are £67. They are now 1000 lumen, but also come with a larger battery which is a bit bulky to give a longer run time - fine for cycling or getting stuck in Rhodedendrons for a couple of hours.
£13.99! You got done! I've just got through my forth bikelight, having got the original for £90 and then progressively down to £11. I couldn't tell the difference between the original and the latter ones and all seem to have lasted about a season (but I do use them twice a day). Broken wires seem to be their downfall for me, but when they are such good value I'd find it hard to just the price of replacing them with a named brand.
I bought 5 "top quality" Chinese T6 bike lights 3 yrs ago, assuming at c£15 they would fail after 2 or 3 uses - all going strong (3 chargers have recently failed). Probably just luck, or the extra £1 worth it !!
saving the environment, bike light by bike light........