I modded (and subsequently sold) a green-emitter thrower using a Dongrui All-920 and a green XR-E emitter that was driven at 2.1A using a Nanjg 105c with 2 of the 7135s removed. It was bright at the time and I never received any complaints from the buyer. I don't know if it would handle long runtimes without burning the emitter, but it was impressive! Details here: