https://www.lumixtar.com/5w-ir-780nm-high-power-led.html https://www.lumixtar.com/5w-ir-780nm-high-power-led.html This seems to match what you're asking for. B

https://www.lumixtar.com/5w-ir-780nm-high-power-led.html https://www.lumixtar.com/5w-ir-780nm-high-power-led.html This seems to match what you're asking for. But converting longer wavelengths to shorter ones is always going to be difficult, so I don't think there exists a practical way to make visible light from 940nm.