What It Scores
LIGHT is a valid word in the tournament list this site uses. Tile values only, before any premium square: 9 in Scrabble and 10 in Words With Friends. The letters break down as L1 I1 G2 H4 T1.
Words Made From The Letters In LIGHT
17 shorter words come out of these tiles. On a board that matters more than the long play, because a short word on a premium square often beats a long one on plain squares.
4 letter words (5)
3 letter words (7)
2 letter words (5)
Longer Words Containing LIGHT
LIGHT appears inside each of these, which is what makes it worth knowing as a hook.
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.