while wait(.5) do
    print('gg111')
    for i,v in pairs(workspace:getChildren()) do
        print('gg222')
        if v.Name=="LightRoof2" then
            print('gg333')
            if math.random(0,2)==0 then
                v.Light.PointLight.Brightness=2
            else
                v.Light.PointLight.Brightness=0
            end
            print('gg')
        end
    end
end