Hi, Mrs. WeedChick.
4 that's great. I have a 100 HPS now started with 400. Get the light as close as you can without burning anything. My 1000 is a foot or less from my plants. I also have an AC blowing between light and plant and cooling the small 4' x 6' x 8'. You don't get burned till you touch the bulb. The farther away the bulb is, the more lumens you loose. Just a foot or so past optimum can cost you half your light. Keep the updates coming. Later.