Actually played on ukulele, but these are the chords, 
most of the lyrics are probably wrong, but either way.

Intro: Ebm

VERSE

 Ebm     C#               F#                 B                            
Hold fire and I'll relax, place your shadow on these tracks
 Ebm          C#              F#   C#
It's turning heads, I have to ask
 Ebm     C#                F#                       B
Nothing could seem so fake, all this darkness it's a give or take
Ebm      C#               F#
She said I opened my mind to mistakes, back when...

CHORUS

 B       F#            C#          Ebm
I saw the light, and it lit up the darkest times when I, 
 B        F#                  C#
I saw the light, I saw the light
 B       F#            C#          Ebm 
I saw the light and it made me realise when
 B        F#                  C#
I saw the light, I saw the light

then this bit is played high on the G and D string:

D:-15-16--11-13--181818
G:-16-16--13-13--202020

second verse is the same as the first 
but, as it is says 'oh and you know that's the truth', 
right at the end an A# is played
to lead on to the chorus.

Bridge:

C#  F#       B  F#
But it's not over yet
      C#                Ebm                    B                F#
there's higher people to follow and still those ones we haven't met
B               F#    
so I follow it through
      C             Ebm
never lead your eyes again
   B                        F#                    C#
it's all about me I'm excited to be so hearts away, away again again

then back to verse chords for verse three 
until it says 'I saw the light' and an B is played

CHORUS, same chords played till ending with the 'oohs'
ends with:
D:-15-16--11-13--181818
G:-16-16--13-13--202020

LYRICS:

Verse 1: 

Hold fire and I'll relax, 
place your shadow on these tracks, 
it's turning heads I have to ask.

Nothing could seem so fake, 
all this darkness it's a give or take. 
she said I open my mind to mistakes, back when...

Chorus: 

I saw the light 
and it lit up the darkest times when I, 
I saw the light I saw the light. 
I saw the light 
and it made me realise when, 
I saw the light I saw the light.

Verse 2: 

People think you're the only one, 
who knew a thing or two about love, 
or what it can do to someone. 
Chin-chin breads for a chin-chin time, 
too much sweetness for my tooth, oh and you know that's the truth.

Chorus

Bridge: 

But it's not over yet, 
there's higher people to follow 
and still those ones we haven't met. 
So I follow it through, 
never lead your eyes again, 
it's all about me, I'm excited 
to be so hearts away, away again again.

Verse 3: 

We've been on this roof for hours, 
I'm slumped over a magazine, 
I wish  your looks were at me. 
It's just so unfair, 
how you take but you just don't care, 
my words were falling through the air, oh when...

Chorus

end.

hope it's alright, 
lyrics probably very wrong, 
worked them out aswell myself.

ENJOY