How much electricity is each appliance wasting? Should you switch off the some lights in the other rooms? Or do you need to replace the current bulbs with more energy efficient ones? The best way to compare the cost of running different appliances is to look at their power consumption. However, some appliances may use more or less power according to the different models. Watts is the measure of appliance power consumption, lower is better if you want to keep your Yaka bill smaller. The table below lists typical values for the wattage of some common home appliances to help you in comparison.