4 x Osram Smart+ 4.5W Tunable White GU10 350lm Zigbee Lamps
This sale is for four new bulbs.
Three are still in sealed boxes, the fourth was opened to test the bulb.
I discovered that my Bosch controller requires bulbs to have individual QR codes, which these do not have.
However, they should work fine with other Zigbee compatible controllers.