Led solar street light in the morning without light detection method

Some led solar street lamps used for a period of time, the led solar street light in the morning at dawn, that some customers is not very good lamp, happens don't know what to do. Therefore, lighting manufacturers in the simple said that the detection method. Can check the indicator light response of the controller, if the two light is not a bright, is perhaps the controller has been damaged, rendering this reason perhaps system were strong current shock, such as direct lightning may short circuit conditions. If found in solar street lamps controller night light appeared normal discharge, check the battery time and enough voltage, but is the street lamps and lanterns is not bright, let's make a proposal to across the electrodes of solar led street lamp directly connected to the battery test is negative, if such tests found that cannot discharge, so the lamp driver probably rectifier is probably damaged, suggest use the multimeter to check. Led solar street lamps controller undervoltage state, the morning after not bright lights, but the battery voltage is more than under voltage value, show the battery have electricity. 24 v system, under-voltage protection value is 22. 2V( The controller default) Or so, down to the battery voltage point in the future, the controller shut off the power and stop discharging, mainly is to protect the storage battery is not affected by excessive discharge and subsequent use of the equipment.