Both out of stock now. Not Zigbee system uses up one of your wifi devices so you may need a better router, limits the number of connected devices in your house.
Why has this expired? The E27 is still available: https://www.evergreenenergy.co.uk/shop/products/73/lifx-smart-bulb-control-via-apple-and-android-devices
You should be able to use IFTTT so when you set the alarm in echo this riggers the bulbs to gradually come on.
Only E27 in stock now.
Light bulb work WiFi and online access. You pay for extras.