Four things a price has to carry before it goes on this page, and nothing we have seen carries all four.
| Required | Why |
|---|---|
| A named device | Not a category. A specific product we can look up |
| That device on the ENA Type Test Register | Registration and confirmation of compliance are required before a device may be placed on the market, so it is the check that settles whether the thing is what it claims to be |
| A price with the seller attached | A number with no vendor behind it is not a price, it is a rumour |
| The date we saw it | Prices move. A deal with no date is untestable a fortnight later |
With nothing to print. We have read the register directly and can confirm one device on it. UK retail prices remain an open item in our own research file, and the figures circulating in vendor posts are not something we will repeat as though we had checked them.
Worth stating, because the format invites all three.
| Not doing it | Reason |
|---|---|
| Affiliate links | They make the ranking a commercial decision and the reader cannot see it happening |
| Countdown timers and stock warnings | They are pressure devices, not information |
| A price we have not seen ourselves on a date we can state | Because that is the entire difference between a deals page and an advert |
A named device, a seller and a price, and we will look at it. If it clears all four requirements it goes up with the date attached. Send it through the form.
Panel wattage and output are different numbers. The specification allows up to 2000 W of panels feeding an inverter limited to 800 VA at the mains, so a listing headlining a large panel figure is quoting the input side.
Cross 960 W of panel capacity and the maker owes you a recommendation to get the existing wiring assessed. A price that looks unusually good for a large array may be a price with that recommendation quietly attached to it.