Photonic Universe 20A dual battery MPPT solar charge controller with LCD display for solar panels up to 260W (12V battery system) / 520W (24V battery system)

Not happy at all . Bought this before heading on holiday in campervan to replace our PMW controller to get a bit more power from the panels with a mppt controller. item worked at first then stopped working for a few days then decided to start working again then stopped working. Did all usual checks with multi meter. Panels producing power but nothing from mppt. Called company for advice which was pointless. Not happy as we were on holiday and needed solar power. Unfortunately my holiday return date doesn't allow me to return for refund as I won't be back home to return it before Amazons allowed return date. Should have bought Victron or just used the PMW I already had installed. They are reduced for a reason a reason I now know . They are rubbish. AVOID