3,longer life extends the maintenance cycle for photocontrols(这个是我们的产品:控制器) mounted in difficult locations. 4, positive electronic switching provides quick made/of the load relay eliminating relay chatter. 5, regulated voltage and silicon photocell maintain accurate turn on/off points of the life of the control 6, low power consumption through a unique regulator circuit.resulting low internal temperature rise contributes to long life.for safety reasons,the ryg photocontrols are designed to fail in the on position3 ,长寿命延长了维修周期photocontrols (这个是我们的产品:控制器)安装在困难的位置。 4 ,积极提供快速的电子开关作出/负载继电器消除中继聊天。 5 ,规范和硅光电池电压保持准确打开/关闭点生活的控制 6 ,能耗低,通过独特的调节circuit.resulting低内部温度上升有助于长期life.for安全原因, ryg photocontrols旨在失败的位置