Does anyone know how LED-based UVC lamps like [1] with >300 LEDs can sell on Amazon for less than $100 when it appears the individual LEDs are fairly expensive?

Does anyone know how LED-based UVC lamps like [1] with >300 LEDs can sell on Amazon for less than $100 when it appears the individual LEDs are fairly expensive? On DigiKey/Mouser the cheapest price I can find is still more than $1/LED [2]. [1] https://www.amazon.com/2020-Newest-Germicidal-Lamp-Light/dp/B085VWPT9C/ref=sr_1_1_sspa?dchild=1&keywords=germicidal+lamp&qid=1585434962&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExTFFKUzMwMURPNzAzJmVuY3J5cHRlZElkPUEwNjg0NjE3MzlJNE9aV0xWM1M5VCZlbmNyeXB0ZWRBZElkPUEwNjQzMzkyM1ExQ0QxWkZVR09DJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ== https://www.amazon.com/2020-Newest-Germicidal-Lamp-Light/dp/... [2] https://www.mouser.com/Optoelectronics/LED-Lighting/LED-Emitters/_/N-8usfd?P=1y962egZ1y8pnoeZ1y8tivpZ1y97r6q&Ns=Pricing|0 https://www.mouser.com/Optoelectronics/LED-Lighting/LED-Emit...