Ou Pu 4W downlight structure disassembly analysis, let's take a look at his performance and quality!
First let's take a look at its packaging:
1. The inner box should be made of three-layer (single pit) corrugated paper: F楞 (not much research on packaging materials, if correct, please correct), the surface is printed with clear lamp outline drawings and detailed information, including: use voltage , current, rated power, color temperature, lumens, etc. From Figure 4 we can see that the model of this super sister is 4W, 5700K, 270lm. What is its actual data, we have the test below.
2, the structure of the inner box fixed luminaire is the internal card structure we usually use, here is not the picture, because they are more common structure.
Now let's look at the appearance of the luminaire:
1. It can be seen that the face ring is made of white plastic. After the flame retardant test, I infer that the material should be 94V0 PC.
2. The two stamped iron pieces of the spring bracket are about 1.5mm thick.
3. The radiator is an aluminum alloy ring that is spun or stamped. The surface is oxidized and sanded, and a parameter label of a lamp is attached.
The top of the heatsink is a fixed external power supply.
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