I am planning to obtain near infrared light for a project. Instead of producing the infrared myself, I thought it might be easier to use something inexpensive and commercially available. That's why I am wondering if the white light of a flashlight or a lightbulb also emits significant amount of infrared light? If not, is there anything else I can use to obtain IR in an easy way?
I'm interested in 700-800nm, and I will be filtering out the rest of the light, so efficiency or rest of the spectrum do not matter.