too much light

[encore]

quick question---just noticed last night that the timer on my tomato plant lights was turned to on not timer, so they have been on 24 hours straight for an on known amount of time, maybe 1 -2 weeks, i had been messing with it hooking up the fan plug and must of moved the switch some how. so how much harm if any did this cause? exceopt the electric bill, lol, noticed some of the plants were growing kind of more sideways instead of up, don't know if that was the reason, ---thanks---tom