Hello everybody. From an unnecessary radiator and an old pan, you can rivet a good LED paw for plants. I took a radiator 7 by 8 cm, the height of the ribs is 4 cm.
The E 27 cartridge was used from the adapter, removing the insides. In order for aluminum to bend well it must be rubbed with household soap and heated with a gas burner - after this procedure the metal will become very soft.
I took the board for soldering the LEDs, but you can also stick the stars.
Since the LEDs are traction, I used a 20-watt power supply.
I cut a piece of the right size from the pan and riveted it to the radiator.
In the upper part I made a hole for the cartridge and driver. I connected all the diodes in series.
After 3 hours of operation, I measured the temperature.
LEDs set two colors blue six and red three.
Thank you all for watching.