The guardrail tube of downlight shell is used for external interface, led silica gel seal, internal circuit exposed, large temperature difference between day and night, end cover and thermal expansion and contraction, resulting in silicone seal cracks. After rainwater enters the room, what results can be imagined. In order to solve this problem, for some requirements of internal circuit and downlight shell, the outside of silica gel sealing cover is simple, but the reliability is not high, so it is applied in large-scale outdoor.

Connection of electric connection of downlight shell. When I do the experiment, the signal wire has corrosive rust sample when it is electrified 8 hours after contacting with water. Poor metal joints only need a small part of the price of the regular manufacturers, due to the surface treatment and material itself, it is very simple rain corrosion, constitute a short circuit. Many manufacturers often choose cheap plastic or metal joints, poor quality, short testing and application time, no plastic deformation, water is no problem, but with the sun shining, the temperature difference between day and night after the season changes, plastic deformation will lead to the failure of the waterproof rubber ring, the short circuit of the rain water in the internal connecting wire, especially in the case of electrified, the steel wire corrosion is higher than the case of no electrified.

In the production of downlight shell, there are two kinds of shell, one is single type, the other is integrated type. So, are the key of the two types of shell the same?

1. Do not scratch or bump each line during the process of lighting equipment to prevent short circuit burning of the lamp, and do not short-circuit the power supply (positive and negative pole contact).

2. Pay attention to the equipment of each component, power controller and bracket, and tighten all screws.

3. Pay attention not to clamp the conductor at the connection of lamp pole when threading. The connection of conductor shall be firm and surrounded by PVC tape.

4. Do not use the parts not recommended by the manufacturer, otherwise it is likely to cause harm or risk to the system.

5. When purchasing the lamp holder, if the driving power supply of the lamp holder is wrong and hidden, it is recommended that the device be at the junction door of the lamp post (communicate with the manufacturer in advance).

6. In case of equipment cable, it is recommended to install fuse (fuse) at the junction door of light pole, and if necessary, it can be reduced and discarded.

7. If the lamp pole equipment is close to the transformer or the local voltage is unstable, it is recommended that the equipment voltage regulator can prevent the damage of the lamp head.

At that time, the cost and heat dissipation of LED lights were still a major technical difficulty, that is to say, no company could break through at that time, so your appearance at that time could not be prevented.

Energy saving lamp itself will announce most of the heat, you can touch the energy-saving lamp, hot. LED chip will also heat, heat dissipation depends on the lamp itself. So it is very important to heat the LED lamp. Compared with the energy-saving lamp, the energy-saving of LED lamp is not obvious.

Article source: downlight shell manufacturerhttp://www.jinleidj.com/