The Flares are ok'd for day or night use. You just need a three pack. They do expire so it sometimes best to buy local. You can try to find the longest before expire in the store. You also need a throwable life preserver. The square types with handles will work. I had to tell my boat insurance that I will be on the Great Lakes. You might want to check on that. Cell service is a little iffy on Lake Erie. For safety you would want a marine radio. Unlike allot of Lakes people still talk about fishing allot on the Erie marine radio.