Where is torch on an iPad Air 4th gen
iPad Air, iOS 12
According to the iPad Air (4th generation) - Technical Specifications, there's only a flash available for the front-facing FaceTime HD camera. There is no flash (torch) with the rear camera on the iPad Air 4th Generation.
Axel F.
Unlike iPhone, there isn’t a torch/flashlight function on the majority of iPad models. Only those models of iPad that are fitted with a TrueTone flash (iPad mini6 and iPads Pro) have a flashlight control in the Control Centre.
iPad mini (6th generation) - Apple Support
iPad Pro 11-inch (3rd generation) - Apple Support
iPad Pro 12.9-inch (5th generation) - Apple Support
Torch on iPad 4th gen
