What brand of led bulb is good? Ten bulbs illumination, color temperature, power and price evaluation

As the fourth generation of electric light source, LED light-emitting diodes overwhelm traditional lighting products with its many advantages. Now that the price of LED has dropped, it has gradually entered the field of ordinary home lighting. So what is the value of LED lighting products worth buying? Does it really outperform incandescent and energy-saving lamps? The author will bring you 10 horizontal reviews of LED lighting products, telling you how the price of different products is.

First introduce the choice of Hengping products. The products of this horizontal evaluation are mainly for home lighting users. Therefore, all LED bulbs suitable for home lighting have been selected. The nominal power is 7W, and the light color is also uniformly selected white. In order to be more representative, the product brands selected by this horizontal review cover major international and domestic brands, while other manufacturers who have not yet launched 7W bulbs or LED products without white light have not added horizontal reviews.

The 10 LED bulbs selected by this horizontal evaluation are respectively sorted by the Chinese trademark Pinyin sequence: Changcan QPX2-0701 Bulb, Philips LED Bulb, Foshan Lighting A60-7 Bulb, Hanyuan Premier Series LED Bulbs, Jingying Lighting B07 Bulbs, Laiwei Optoelectronics Jazz Series LW-LB7W Bulbs, Bright and Bright LED Bulbs, Green Ming BPZ 220/5 D30BP2 Bulbs, OSRAM Starlight classic A-type LED bulb, dry bulb QQP-AC220V-W07A bulb.

LED lighting products are beginning to become mainstream

7W LED lamps are mainly used to replace 40W incandescent lamps, and 8W energy-saving lamps are also used to replace 40W incandescent lamps. In order to make more intuitive comparisons in some values, this horizontal review also added a 40W incandescent lamp (General Electric) The company's 40W general lighting incandescent lamp) and an 8W energy-saving lamp (Osram's premium star 8W general lighting self-ballasted fluorescent lamp), compare some of the product parameters with Hengping products, to see the replacement of incandescent Whether the LED light is better in the lamp.

The main parameters of this horizontal evaluation test will include illuminance, color temperature and power. At the end of each parameter comparison, we will analyze the performance of the product. At the end of the horizontal evaluation, we will conduct a comprehensive analysis of the actual performance of the product.

The author believes that it is necessary to have a simple understanding of LED bulbs. Therefore, before the horizontal review, we have brought you an introduction to the disassembly analysis of LED bulbs.

10 LED bulbs for this review

LED bulbs are lighting products that use LED light-emitting diodes as a light source. In order to better replace the traditional lighting products, the LED lights are made into a spherical shell, using the most common E27 screw, which is the shape of our common bulb.

The structure of the LED bulb is: screw, base, circuit, heat sink, LED, soft cover. LED bulbs use the E27 screw, the most common bulb interface, to maximize compatibility with existing lighting fixtures; the base is used to connect the screw and heat sink, and to avoid electric shock, the bulb's circuitry is also fixed in the base, The household AC power is converted into direct current to provide a stable working current for the LED; the LED is fixed on the heat sink, and the heat generated by the working is dissipated by the heat sink directly in contact with the air, and the light emitted by the LED is transferred through the lampshade. Make the lighting more even and soft, suitable for lighting.

LED bulb structure

Bulbs of different LEDs will vary in detail, but the general working principle is the same. Thanks to the use of more luminous LEDs as light sources, LED lamps can provide more efficient illumination with less power consumption, and we will test them in the next cross-evaluation.