How to add a position and change to "Spot Light"?

local LightPart = workspace.Park
script.Parent.MouseButton1Click:connect(function()
    if LightPart:findFirstChild(LightPart.Name..'Light') then
        LightPart:findFirstChild(LightPart.Name..'Light'):Destroy()
        script.Parent.Text = 'Press to turn light on'
    else
        local light = Instance.new("PointLight", LightPart)
        light.Name = LightPart.Name..'Light'
        light.Range = 30
        light.Color=Color3.new(27/255,160/255,189/255)
        script.Parent.Text = 'Press to turn light off'
    end
end)

What do I need to edit to this to make it a Point light instead of a spot light and a different position eg, back,front,left. When I have tried it gliched he whole script and whatever is after the "else" stopped working.