this be a small but powerful hand-size projector . I use it for my english class in the ecuadorian campo . the focus be very precise but easily disturbed . I would like to have it set up so that the image can be either vertical or horizontal . the power cord be the same as on my HP laptop -lrb- except the device end -rrb- and be heavy enough to drag the projector off the table and on to the floor . lead bulb replacement ? UNKNOWN . despite my apparent negative comment , I really like this little gem and would recommend it to anyone who can accept its limitation . oh , and the price-is-right .