With the IES file, a professional simulation lighting report will be offered to the clients to identify which item is the right one for the clients' application. What you need to do is to collect the high bay project information, such as the hanging height, the spacing between each fixtures, what's the size of the room and how many lights have been used in this room. And of course, you need to let's know what's expectation lighting level.
Lighting Level Suggestions:
Movement and orientation only 40 Lux Rough intermittent 80 Lux
Simple tasks 150 Lux Ordinary tasks 200 Lux
Moderately difficult tasks 250 – 400 Lux Difficult