Do not place your trust in bulb. They'll cheat you The trick is a very simple one, a trap that the unwary will fall into. Bulb reverses the nighttime and daytime readings. I couldn't understand why they had the readings back to front until I calculated the charges using the cheaper nighttime rates. I have storage heaters and a boiler that is storage too. Most of my electricity consumption is during the nighttime and so at the cheaper rate. Bulb reversed the readings and charged me at the more expensive daytime rates. Easy trick and a way of cheating customers that gives bulb's owners a fat but wrongfully gained profit. I pointed out to customer service that they had the readings wrong. Sophie T. responded that even though the label on the meter says R1 is daytime and R2 is nighttime, that doesn't mean anything. There are all kinds of meters, she wrote. Such are the words of a crook, denying the evidence of her eyes. So I performed the space test, at great inconvenience, proving that the label on the meter was accurate. At that point, with evidence that bulb had overcharged, customer service disappeared!! No answers, no revised bill. Nothing. If you are a customer of bulb I suggest you scrutinize your bills. If you aren't a customer of bulb but are thinking about joining up, don't. They'll cheat you and rob you blind.