I need a simple circuit & PCB designed for a constant current DC (4.2v 18650 Battery Source) LED Driver. The circuit will run 2 LEDs. I will provide the LED specs to the bidders privately. The circuit must be very compact and efficient (maximize battery life). Deliverables will include: 1. Schematic (PDF) 2. PCB Design Source Files (including exported STEP file of PCB & Components) 3. Component BOM (with sourcing references) 4. All files necessary to submit design to a PCB Prototyping Vendor in USA for production I will provide further details regarding PCB format/shape as well as further details to the winning bidder. This is an extremely simple circuit (very few components are required) and shouldn't take more than a few hours work for the right candidate.