As far as the lightbulbs you were trying to use as repeaters, there’s no such thing as “Zigbee+.“ There are some specific brands that use plus in their name, like the Osram Sylvania “smart plus” Zigbee bulbs. But as it happens, most Zigbee bulbs are not good repeaters for battery powered sensors, the only real exception being IKEA Tradfri. See the community FAQ for details:
FAQ: Are Smart Bulbs Repeaters? (Updated 2019: the new answer is yes, but may be inconsistent)
What’s the brand and model of the bulbs you have there?