LED Street Light Energy Saving Moisture-Proof, Moisture-Removing Breath Function Test

Open the cover of the lamp, and use 3g absorbent cotton to add 5g of water with a resistivity of 2000 ohm·cm (distilled water plus a small amount
NaCl modulation), put it into the cavity of the lamp close to the main body of the radiator (be careful not to directly touch the circuit board and components), and then cover
Install the single LED street light according to normal use with the face cover at an ambient temperature of 25℃±5℃ and a relative humidity of 55%±5%R.H.
In the environment, the voltage is the rated voltage and the frequency is the rated frequency power supply, and the light is turned on for 5h, and the light is off for 3h, so the cycle is 6
A total of 48h; then cut off the power of the lamp, put the lamp into a high temperature test box at 80℃ and keep it for 12h, then take out the lamp,
After cooling to below 40°C, and then turning on the power, the lamp should be able to light up normally; open the cover to observe, there should be no trace of electric spark on the circuit board,
There should be no condensation inside, and the moisture in the absorbent cotton should be basically dry. Otherwise, the damp-proof and exhaust of the lamp will be unqualified.