Not a multi cell light but the Sofirn C8F would work nicely. Doesn’t get super hot, super fast like the Emisar. Depending on how you are dressed, could be carried in your pocket. Though a holster for it is super cheap and practical. Hides nicely under a untucked shirt. Replace the wire they used for the spring bypass and you have 3000+ lumens of triple emitter goodness.
https://www.aliexpress.com/store/product/Sofirn-C8F-Triple-Reflector-Tactical-LED-Flashlight-18650-Powerful-2580lm-Flash-light-Torch-3-Cree-XPL/2933049_32838919520.html