The light is per the manual supposed to some with a part that attaches to the bottom with a wing-nut that hold the chemical that attracts the bugs. Instead, this part is replaced with a snap in piece that has no bottom. Since it has no bottom the chemical came with a sticky bottom which is used to hold the chemical. The chemical has to be near the light so it heats up to release the chemical. With this new part the chemical is too far away from the light and once the sticky part heats up the chemical pack falls off and out the bottom.