The lamps are home-made, they consist of 15 LEDs connected in parallel. These 8 mm LEDs consume only 20 mA with their strong brightness. That means 15 LEDs will consume only 300 mA. .
.There are two lamps. In the box there is a charging unit; voltage is input from the solar panel; it charges 6 lithium batteries with a total capacity of 15,000 mA and 2 supercapacitors of 2.7 volts 100 farads which are connected in series and connected to lithium which are all 6 soldered in parallel.
. The bulbs are connected directly to the batteries through a switch. The charge board has an LED full charge. This design is enough to illuminate garage in the country, a room with animals. When fully charged, energy is enough for 25 hours of continuous operation. Charging is even in cloudy weather. The USB output can be soldered to the charging unit to charge the mobile phone. It is convenient to take this design on a camping trip to light the tent and charge the phone. Capacitors 2.7 volts 100 farads can not be soldered without first discharging them with a standard halogen at 12 volts 35 watts.
