Outdoor arena lighting

I use the same light as pds does and they work very well on lighting not only the dressage ring but also a considerable part of the jumping area.

The lights do have to be placed up high (much higher than 9 ft) otherwise they shine in your eyes. I have my lights way up in a pine tree and they shine down on the riding areas. Works very well and the work lights are very cheap. I got mine for $5.00 with bulbs at Habitat for Humanity. The light are guaranteed to shine for 1,500 hours.

It is great to know that you have a new horse arena. It is recommended to have the LED lights for horse arena. It is because LED horse arena light is much more energy saving. If you compare the lighting efficiency of metal halide, you will find that LED arena light has 2 times luminous efficiency.

And how many power do I need? Generally speaking, if it is for private use, 200 lux would be more than enough. Let me briefly calculate the power required. For example, you have a 1000 square meter field, you will need 200,000 lumen, which is equivalent to 1500 LED flood light. You can try to get the very preliminary wattage used. You can search in the web, and you will find tons of LED supplier.