Can I use a Tradfri bulb as a repeater?
I often loose connection with the Mi Aqara sensors on the loft. Looking for a repeater I think about installing a cheap Ikea Tradfri GU10 bulb there or on the 1st floor.
Without switching the bulb on, only connected to mains and paired with the SmartThings hub, it is a cheap repeater for $8.99. I install it in a lampfixture, connect it to the 220v and leave it off.
Will this work?
Now the Tradfri bulb is installed in the loft, I had to look for a good location within range of the SmartThings hub.
Already a few days the door/window sensor has a reliable connection with the hub.
Looks like the bulb works as a repeater (€6,95 / $8,99).
Thanks for the update.
I have a few tradfri bulbs and doubted they actually repeated. So next time I can buy one of these to use as a cheap repeater 
I’ve got two Tradfri bulbs quite close to each other - one is often unreachable as it’s slightly further from the hub, so I’m not convinced about them being repeaters personally.
First you have to find the maximum range of the bulb to the hub. How far away can the bulb be controlled.
Due to steel in the house , concrete walls/ceilings, it can be variable at different locations.
Make sure that is reliable for a few days and then the bulb will be repeater for Things near the bulb.