Metre Reading

I have two types of metre reading. Showing R1 and R2. How do I know which one is day or night.

Hi @suad – as nutty as this sounds, it depends – sometimes R1 is day, but sometimes it’s night.

Usually, I’d be able to tell based on your account which was which. But in this case, your meter setup is confusing me a tad. Would it be possible to send us a photo of the meter at help@bulb.co.uk? Sorry and thank you!!!

Best,
Andrew