I *think* they're 19lb/hr. They are the Bosch upgrades over stock for 99-01 XJs. They didn't have the flow rate on their ad page, but as I understand it, the orange are 19lb/hr injectors. Maybe I missed it, but here is the ad where I got them...
http://www.ebay.com/itm/BEST-UPGRADE-19 ... 3f0f16f8cc
The ad shows the green ones, but the ones they sent me obviously were the orange.