Behind the tiny panel, there is a battery pack, which seems to be two pieces of 18650 batteries connected in parallel.
The lamp is less than 1.5 watts. At 3.7 volts, it draws 0.4 amperes. Almost 67 times less than what it claims to be!!!
It emits minimal light. Like a child's night light.
The lamp can be removed from the panel, but to place it elsewhere, the cable needs to be extended.
It is definitely not worth its money.