This is the same concept but slightly less annoying (shorter time) on IKEA Trådfri bulbs, if you want to connect them to other zigbee gateways. On/off 5 (or 6?

This is the same concept but slightly less annoying (shorter time) on IKEA Trådfri bulbs, if you want to connect them to other zigbee gateways. On/off 5 (or 6?) times: 1 second off, ½ second on, repeat.