Too good to be true, right? For me, sadly, yes. I trialled the HumanCharger over the wettest, darkest late-September week on record and did not find it to be an effective solution. While it felt good to be getting on top of SAD before the winter took hold, I wouldn’t recommend swapping out your vitamin D supplements in favour of this light therapy device, no matter how quick and convenient it appears to be. I also trialled it on a 5am flight to see if it could alleviate that out-of-whack feeling that comes with an early plane journey. I wasn’t traversing any time zones so cannot comment on its ability to cure jet lag, but I certainly didn’t feel any peppier – at least until I’d had my double macchiato.