Each solar light has a solar cell consisting of processed silicon. STEINEL solar lights feature the monocrystalline solar panel, which is highly efficient compared to polycrystalline and amorphous solar panels and can convert solar energy even when it is cloudy.
In the cell, the supply of light and heat (solar energy) releases positive and negative charge carriers, generating electric current (photovoltaics) that, in the case of STEINEL solar lights, charges a lithium-ferrum battery. In some products, this has a lighting reserve of up to 60 days at 20 switching operations per night, 2500 mAh capacity and is temperature-resistant from -20 to +40 degrees.d.
The battery feeds the STEINEL LED system from the converted solar energy, which can illuminate an area of up to 30sqm with 150 lumens at 1.2W. The highest efficiency is 124 lm/W.
STEINEL solar lights also feature a powerful infrared sensor that switches light only when it's really needed. The 140-degree sensor with Fresnel lens integrates perfectly into the design.
To make the solar lights even more efficient, STEINEL has built software into the light that sets up a permanent automatic demand analysis and takes care of reserve control.