Opening this .map file will give you a sample of what your lightning should look like. In-editor ALL flickers are ACTIVE. This means if you are prone to epileptic seizures caused by flashing lights or anything like that, DO NOT OPEN IT. Don't risk it. Find another way to add lighting without having to stare at these flashing lights. It can be very hard on your eyes and I suggest not working on lightning effects for more than 20-30 minutes at a time.