disapointing, doesn't seen effective -- no pile of bugs around it, very few stuck to it :(  plenty of bugs flyin around -- very FEW attracted TO this -- HOPING to see an increase in effect,  I waited 2 days too long to return it :O now stuck w it - -YEARS ago had a garden bug killer that attracted em w a black light that was REALLY black! once the bugs got close, they were SUCKED INto the pan of dish detergent water under the light by a powerfull fan [ dish detergent eliminated surface tension so the bugs couldn't float an drowned right away ]  REALLY EFFECTIVE!  Had to clean it and refresh the mixture near every day [ FULL of bugs! ]