... Super Brighth HPS (>70lm/W), Low Light decay: only 4% after using for 10000 hourscontrollerSRS patent Controller, Patent NO. ZL ... functions, such as, Anti-Over-charge, Over-discharge, with Light Sensor & Timer, including the Digital LED Driver to drive the ... Lead-Acid Battery, waterproof with Nano Technology, specialized for SRS Solar Street LightCables and connectorsSilicon rubber with purple brass ...