It hasn't been tabbed yet and it is a quite easy song.
It is a bit tricky on the strumming but listen to it and you will figure it out.
Well this is how it sounds to me! Enjoy!

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              There's a light on - Quietdrive (from the album Up or Down)
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Tabbed by: nikgt

Tuning: EADGBe

    Em   G   D   C
e|---3---3---3---3-|
B|---3---3---3---3-|
G|---0---0---2---0-|
D|---2---0---0---2-|
A|---2---2---0---3-|
E|---0---3---0---0-|

G                 D
There's a light on in the window
G                  D
Lets me know she's safe at home
G                   D                    C     Em
Through the trees I feel the wind blow   oh oh oh oh

G            D             Em
She doesn't know that I'm watching
G            D              G
She doesn't know that it's cold

G                 D
There's a light on in the window
G                     D
Half the moon lights up the sky
G                    D                 C     Em
There's a rope swing in the backyard   oh oh oh oh

Chorus:
G            D              G
She doesn't know that I'm watching
G            D             Em
She doesn't know that it's cold
G            D          G             Em D G
Someday I'll find the words to make it right
G                D       Em     C D 
Em D C Em D C
Until then I'll stay outside

G            D              G
She doesn't know that I'm watching
G            D             Em   D
She doesn't know that it's cold
G            D          G             Em D G
Someday I'll find the words to make it right
G                D       Em
Until then I'll stay outside
G                D       Em
Until then I'll stay outside

Outro:
G
There's a light on in the window
                    D
Lets me know she's safe at home