Constant power supply and lots of light.
Very inexpensive, you get what you pay for comes into mind with this product. The app does work once you get used to it. Battery life is non existent, it's like emergency mode for when you lose power 45 minutes tops with no power supplied to the device. Night mode is also no good, really bad. Do not switch them off to conserve battery life because when you do you have to relink the device every time it is switched on. So never switch them off turn off push notifications always supply power and lots of light they work. No power supply or if night time comes at your place you should just dispose of this product. One star is over rating it. Read more











