No, the designation "4 x" in the product description of the "Smart+ Wifi Globe (E27, 14 W, 1521 lm, 4 x, F)" from Ledvance does not mean that the product comes in a pack of 4. This probably refers to another feature or specification of the product and not to the number of lamps in the pack. To confirm the exact number of lamps included, you should check the packaging or the specific sales details.
The supplier is from Germany. He gives us the delivery dates and I think this is his average delivery time. It may well be that the delivery arrives earlier. :) LG
Bosch has switched off a website that shows which bulbs are compatible. I currently have 4 in use. They work without any problems. There used to be some that were delivered without a QR code printed on them. But that should no longer be the case nowadays. By the way, the Bosch Smarthome System is awesome. It's been running absolutely problem-free for over a year.
I have tried this bulb and my conclusion is, hands off. The Homekit code was available but 3 out of 4 bulbs had the wrong code. I could not integrate the bulb into Homekit.
The Philips Hue Bridge officially controls all ZigBee-based LED bulbs. Nevertheless, not all LED bulbs that use ZigBee are automatically compatible with the Hue Bridge. According to Philips, this is not due to the Philips Hue app, but to the software programming of the third-party suppliers. Therefore, before buying a ZigBee bulb, it is worth checking whether the manufacturer actually guarantees Philips Hue compatibility.
Not necessarily, according to the description there are various ways to make it work.
WITHOUT GATEWAY:
Products can be controlled via an Amazon Echo Plus without a gateway or additional station. The Echo Plus can be set up via the free app.
WITH GATEWAY:
Can be controlled via Amazon Echo, Echo Dot or Echo Show in combination with a partner gateway, Google Home in combination with a partner gateway via voice control. Without voice control, a partner gateway is sufficient. The gateway is set up via the appropriate app. Compatible partner gateways are e.g. Magenta SmartHome, SmartThings or Schwaiger4You.
Alternatively, Smart+ products can be controlled manually via a corresponding remote control.