A disadvantage is that the programming at each insertion of doses must be repeated - but likely that few users often use the cans elsewhere. If only should these models, however, are rather unsuitable, instead we rely on a model with fixed programmable switches. The same of course applies to a power outage, but is fortunately quite rare. The battery used in the remote control is a special form - a substitute is therefore expensive: The A23 batteries (12V) cost quite around 3 euros. How long a battery will be shown in practice, however, yet.
Each box had a short measurement at a power consumption of about 0:35 W, only slightly more consumption with switched socket (no sufficient measurement accuracy available, measurement was carried out for two doses with subsequent halving of the value). Compared to many other doses is relatively little, there are, however, more fuel-efficient models. The can is good so not necessarily to avoid the cost of fuel-efficient standby devices - when the TV is in standby consumes little power similar then not worth using. However, there are a lot of devices that consume standby significantly more and for a light switch, the standby consumption is probably also to get over yet.
