Dont buy LEDs form aliexpress, they will cause glare. Trust me, I have tried many LED's from aliexpress, some were bright and good, some had very bad beam pattern, some were dim but all of them caused glare.
I can assure you though that Photum LEDs that BI-LED are selling dont cause glare. They have perfect OEM cutoff. I have been using them on my corolla for more than a year and they have perfect light output and dont cause any glare.
You can contact Photum about the bulbs in H4 housing, they will guide.
Or you can get phillips extreme vision or Osram Nightbreakers. I am using Osram Nightbreakers in my city and they have a much improved light output compared to the stock halogens. Got them from Aliexpress for 3300 I think.