Is there anyway to keep a surface light the same?

I'm making a horror game and I need a round light

game.Players.PlayerAdded:Connect(function(plr)

    plr.CharacterAdded:Connect(function(char)

        local Light = Instance.new("SurfaceLight")

        Light.Name = "Light"

        Light.Face = "Front"

        Light.Brightness = 1

        Light.Range = 60

        Light.Parent = char:WaitForChild("Head")

    end)

end)

this script works but only on high quality, when you go to low quality the round light turns into a giant square is there anyway to keep the light the same