ESG we can disagree then and I’ve no idea why Smart Ass is your default setting. You don’t need to be able to read a newspaper at midnight in the arena. I was trying to meet you in the middle and allow that jumping would require better lighting than riding around in circles, but you won’t have that.
I rode my 16.2 hand mare last night in my arena. We had no issues with the lights in my eyes. They are angled and adjusted so they are not aiming straight at me no matter the angle. It is plenty safe and those poles are plenty tall.
We don’t hire much done and there was absolutely no reason to kill ourselves with 40’ poles or some such monstrosity to light a 66X125’ home arena. What we did is absolutely fine and provides a reasonable, safe level of light for riding, longeing, etc.