Finally a bug zapper that lasts longer than 3 months.  I got tired of returning them to the big box stores.  It never failed, I went through three of them.  This one works great and lasted all year.  It does not have a photocell, so I'd recommend a timer.  I ran mine dusk to dawn.  Even without the mosquito bait it killed a ton of them.  They were over powering this year though.  I could not help myself but smile a little every time I heard it 'ZAP' :)