The Sobol illuminated bollard uses a four-channel dynamic boost algorithm to maximise the power generated from each individual solar panel. During the day the light tracks across the unit, illuminating and shading the panels. To capture energy efficiently from direct and indirect sunlight, the optimum power point of the panels is calculated in real time and the charge taken from the panels is adjusted, harvesting the maximum power from each panel
The battery is charged throughout the day from the energy harvested from the solar panels. The Sobol illuminated bollard has battery management technology which mitigates full discharge by reducing the LED brightness until there is sufficient ambient light to charge. To maintain battery levels during transportation, a low power mode can be initiated by briefly placing a magnet against the unit; once installed the magnet is used again to activate ready for use.
The Sobol illuminated bollard monitors the ambient light levels, anticipating the transition from day to night. The automatic transition allows for seasonal changes in light levels. During the night, a high efficiency 180 lumens-per-watt white LED illuminates. The brightness of the LED is regulated by a pulse-width-modulation driver circuit. The LED remains at a low light level until activated by the passive infrared (PIR) sensors. The PIR sensors have a detection range of up to 5m, on approach the LED brightens for 10 seconds, gently dimming to the low level.Contact us
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