Element Plus A19 bright bulbs are the easy to get started with bright lighting, with the additional dimension of adjusting the lights to the perfectible shade of colourless faint between 2700-6500K. up to 64 bulbs per Element hub and enjoy bright lighting capabilities in every room using active fixtures and lamps. Control on/off, brightness, colour temperature and schedule using the Sengled Element Home app. on vacation ? . the lights to turn on/off automatically to make it look same someone is home for additional security. psychological feature waking up ? . a process to slowly have lights brighten to mimic the instinctive sunrise. Kids the lights on ? . the status of each bulb in the app and turn sour remotely to save on your electricity bill. Element Plus bulbs also on most wall dimmers without flicker. for use with Amazon Alexa, Google Assistant, SmartThings and Wink.