Operation in most cases (in island-mode)

12W technology Adjust Tilt angle Approx. unit price / pcs in EURO
lamp holder arm (on the column) 105%
solar cell holder arm (on the column) 0% 38º
Energy production Type Output
Solar cell monocrystalline 80-180W EUR 80-220 
Power bank Type Output
Battery operation SOLAR 80Ah-140Ah EUR 100-180
Operation Type Output
voltage reducator MPPT 12-24V DC
Light source Type Output
LED China;LED/1.5W 90 -115 lm/W 1320
System boot Type Output
twilight switch Chinese;Korean; 2A
Light distribution Type Output
LED without lens
Color fidelity Type Output
light color Kelvin 4500-5500K

Operation with Energo Light (in island-mode)

12W technology Adjust Tilt angle Approx. unit price / pcs in EURO
lamp holder arm (on the column) 110% 10º
solar cell holder arm (on the column) 360% 42º
Energy production Type Output
solar cell monocrystalline 40-80W Between EUR 40 and 80 
Energy storage Type Output
battery operation SOLAR 14-22Ah 25-30 EURO
Operation Type Output
voltage reducator + ind. control unit MPPT 12-24DC
Light source Type Output PEL- EE 12W LED
LED Osram/1.1W 118-135 lm/W 1620
System boot Type Output
NO twilight switch PEL development PEL development
Light distribution Type Output
LED with lens 140º-60º
Color fidelity Type Output
light color Kelvin 4000-4800K

The main thing: Both battery and solar cell size have been reduced, while the reliability of the operation of the system (without twilight switch) and control electronics software which is developed for the problem-free operation. The maintenance fee usually higher when a manufacturer uses a bigger battery. In addition, the battery usually stored buried in the soil due to its size, which is a significant extra work in case of maintenance works or change.

Pictures of other technologies