In the past few days I have sorted out some old lamps and sold them on eBay. Several buyers had no idea how to reset the lamps so that the new Bridge would find them immediately – although it is so easy with the dimmer switch. This is how easy it is to reset a Hue lamp I have often explained how to reset a lamp with the dimmer switch.
Resetting Philips Hue lamps with the new dimmer switch When the Bridge can't find a new lamp
When the Bridge can't find a new lamp