@JKimNoise does not matter with collecting insects, but yes, if it is TOO loud and if you are collecting nearby someone's house, yes, you will very likely be reported, and an officer who does not know the law very well will VERY likely stop you thinking you are doing illegal activity. You will ruin a day! It happens, and officers might let you go and let you do whatever, but sometimes, they will stop you.
Again, if you don't already own mercury vapor (mv) ballast, there is no way to obtain one. MV is no longer permitted to be used.
Here are couple Amazon items I can suggest. Not all of my equips are still available, so you can probably choose something similar to it:
Yamaha EF1000iS
https://www.amazon.com/dp/B002RWK9LY/
Sylvania 400w Metal Halide bulbs
https://www.amazon.com/dp/B00OZVSI3G/
Vivosun 400w Metal Halide Electronic Ballast
https://www.amazon.com/dp/B016POA4XM/
mogul socket lamp with cord
https://www.amazon.com/dp/B00Y78PNOE/
blacklight fixture (remove that purple tube, and throw away, it is a trash. it filters most of actual uv so it is worthless)
https://www.amazon.com/dp/B01LYF4S46/
blacklight tube replacement for above
https://www.amazon.com/dp/B00FZQ9HY4/
This is the lights you will need or something you can refer to when you find your own set ups.
I don't know what's the professional field of entomology you are going into (and since you are graduating from high school), but if it is the "college," you may not encounter much of beetles for your entire undergraduate years (in courses) unless you go to a school where scarab specialists work and working under him. Most entomology in undergraduate courses are focused on agriculture. So you will be studying IPM.