confusion over which ipad has a flash - 9.7 inch pro

Im hoping to buy a few more ipads for work. We use an app that requires a flash wih the camera and we currently use the 9.7 pro (2016) models but they are getting tired.

So i have looked about and told it is only this specific ipad that has a flash, yet apple say it is on their 12.9 pro2017 and a 10 inch but also they have told me none have a flash. Then i go through to sales and they say the brand new one has a flash.

So confused and even apple tech help and sales have no idea.

Both our work ipads are ghosting and screen freezing and they are our main work tools, without these we cant do out job. Please, does anyone know which ipads have a flash in the uk. Its really important to us. Thanks in advance