this is the whole song not hard very easy .
G|----------------------------------------------------------------------------|
D|----------------------------------------------------------------------------|
A|-11-11-11-11-11-11-11-11--9-9-9-9-9-9-9-9--7-7-7-7-7-7-7-7------------------|
E|-------------------------------------------------------------9-9-9-9-9-9-9-9|
[ Tab from: https://www.guitartabs.cc/tabs/e/ellie_goulding/lights_btab_ver_3.html ]
or if you want to you can just let it ring with the beat like this
G|---------------------------------------------------------------|
D|---------------------------------------------------------------|
A|-11(RING)----------9(RING)-------------7(RING)-----------------|
E|-------------------------------------------------9(RING)-------|
And that's it the whole song your welcome .
