Can this Power Bank power a 30W led lamp for camera?

The Power Bank doesn't power the LED lamp directly, but it can charge the lamp battery.

The Power Bank has a 26,800mAh capacity when charged, and the LED lamp has a 4,500mAh capacity battery, so it would appear you could charge the lamp 4-5 times from a charged Power Bank.

I thank you for your info.
But I like to do an example:
when the battery of the lamp is almost empty and after 5 minutes it doesn't work anymore, if I connect the Power Bank, will it make the lamp work for a long time?I don't understand this. A friend told me to buy a power point with PD. Can you explain it to me better please? I don't want to charge the battery of the lamp, but I want the light to last longer.
Therefore what do I have to do?
Thanks agin.