Hello everybody. After eating oysters, do not throw away shells. The oyster shell does an excellent job of dissipating heat from the LED.
Glue the grip LED directly onto the sink.
After drying, we drill holes for mounting on the side and under the wires from above.
We check the heating by connecting two batteries through a 3 Ohm resistor. After three hours, the temperature rises to 30 aboutFROM.
For the stand, I used a stainless steel plate, you can hide the switch and batteries in it. I made the stem of the holder from the segment of the hairpin, putting on it thermal insulation from the air conditioning tube to hide the wires.
We fix the sink with a bot to the hairpin.
The check showed that after three hours of operation, the battery sat at 0.2 V. The night lamp will work for a month without recharging.
Thank you all for your attention.