Recently, a company developed and produced LED bulbs (LED bulbs). For reference, there are several international brands of LED bulbs on hand. The specific brands are Philips, Panasonic, Toshiba, Sharp, Lemnis Pharox and so on. Therefore, they were compared and tested to specifically test the luminous flux and luminous efficiency of the LED bulb and the temperature rise. Here are some personal perceptions and test data, just for reference!
Appearance and production process
Appearance aspect
The Pharox lemnis LED bulbs have a good appearance and craftsmanship with a glass shade.
The appearance and production process of PHILIPS LED bulbs are good, and no obvious flaws can be seen. Glass shades are used.
The XQ-lite LED bulb has a rough appearance and a glass lampshade.
The appearance and production process of TOSHIBA ECORE LED bulbs are good. PC plastic lampshades are used. This is the only plastic lampshade used in the big brand LED bulbs tested. Our XineLam brand has glass lampshade and light diffused PC lampshade. ).
SHARP LED bulbs have a good appearance and craftsmanship. They use glass shades, but I don't like them personally.
The appearance and manufacturing process of the Panasonic LED bulbs are good. The glass lampshade is used. I don't know if the packaging is too simple. When I get the sample, the glass lampshade has a small crack.
The other two LED bulbs have a poor appearance and manufacturing process, and are made of glass shades.
Packaging:
Pharox lemnis is packaged in paper and protects the bulb.
PHILIPS in blister packaging
The XQ-lite is packaged in carton with a protective bolster.
TOSHIBA ECORE is packed in carton. There is no protective pad holder. Only the plastic bag is used to wrap the LED bulb. Because of the plastic lamp cover, it dares to do so.
SHARP is packaged in carton with a protective bolster. I think the packaging of Sharp's LED bulbs is the most reliable, and of course Pharox lemnis is also very good.
Panasonic uses carton packaging, which has corrugated paper inside the box as a protective ring. It may be that the sample obtained is broken. Personally, the packaging of the Panasonic LED bulb is not reliable.
The above personal views, do not make reference! Still take a look at the actual data.
Test Data:
The table below shows the measured luminous flux and luminous efficiency. The test time is for each LED bulb to illuminate in the integrating sphere for one hour. It is divided into the initial luminous flux and power consumption. When the light is turned on for three minutes, the luminous flux and power consumption are illuminated for half an hour. Luminous flux and power consumption, illuminating one hour of luminous flux and power consumption. All tests were completed and the initial brightness efficacy check was performed after cooling for 24 hours.
Note: The room temperature is 28 °C when tested in the above table, the input voltage is all according to the nominal value, and the 100-240V product is tested using 230V.
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