HPS lights

Hey ya'all! Just got my HPS light set up. Just wondering how far you guys would recommend keeping my plant from this light? Thanks!

Any idea how many watts that hps light is?? VV

250, uber sorry about not including that info!! Only one plant though

I'd roughly say around 10". Stick your hand under the light at the tops of your plants. If it hurts your hand or is a little uncomfortable then I'd raise them a bit higher until your hand feels comfortable.