After looking at all of the comments, regarding it as an awful slasher, I must say in my opinion they are totally wrong.

This had all the gore you need, maybe it could of had more, but still has a bloody edge, and the effects wern't all the terrible, even though towards the end when the woman is being grabbed by her hair when she's hanging off the Lighhouse does look a little bit stupid. This actually had above average acting, the characters arn't as wooden as some actors. But it is a B-Movie, and this has proudly made it's way into my top 5 in slashers.

I'd give The Lighthouse - 7.5/10

God bless British horror...now go watch Cradle Of Fear (Ultimate cheese, awful acting and terrible dialogue = a must for any horror fan like me)