Nine LED bulbs LED business Differences between design ideas

With the price reduction, LED light bulbs has begun to spread. Recently, not only Japanese manufacturer, Korea, China, Taiwan and European manufacturers have also started to focus on other products of LED bulbs. To this end, the East Asian region sales of 9 LED bulbs were disassembled and analyzed, found that Japanese manufacturers and foreign manufacturers in the design of thinking there is a huge difference.
LED bulbs as a substitute for incandescent bulbs growing concern. It features low power consumption, but, in addition to high prices than incandescent bulbs, many users believe that the existence of "large", "heavy" and other design issues. This is currently being sold on from a number of East Asian production base LED bulbs for the dismantling and analysis in order to find the inspiration to solve these problems. By dismantling and found that the Japanese manufacturers and foreign manufacturers the differences in design ideas, this is the "Japanese firms the importance of design, while the cost of overseas manufacturers are given priority."

Most clearly reflect this difference is the LED light bulb base. Overseas manufacturers of LED light bulbs are equipped with heat sink, the Japanese manufacturers have products with no heat sink. Zhayi think that there is no heat sink will be cheaper, but in fact there is no need to use heat sinks are often part of high heat resistance, so the cost is not reduced. Do not use heat sink "in order to improve product design" (Toshiba Lighting & Technology). Not just the company, many Japanese manufacturers are working hard to close the shape of the LED light bulb incandescent light bulbs. The overseas manufacturers of LED light bulbs "through the use of near-extensive design, cut costs" (dismantling of technical assistance).

Let's look specifically reflected in the appearance of different design ideas.
Shell surface temperature of different light bulbs
The total dismantling of the 9 LED bulbs, respectively, from South Korea, mainland China and Taiwan products sold in eight randomly selected, and the sale of products from Japan, choose the closest appearance of incandescent bulbs 1 (Figure 1, table 1). These products are used E26/27 ordinary light mouth. The nominal value of the product, the power consumption in the 4 ~ 7.5W range, the total flux in the 210 ~ 600lm range. Among them, close to the power consumption and total luminous flux of 7.2W Toshiba lighting technology products, South Korea's Samsung LED of 7.1W products and China's 7.5W ground on photovoltaic products as Group A, the other as the B group.

Figure 1: The dismantling of the nine kinds of LED bulbs
Toshiba Lighting Technology 7.2W products, Samsung LED products of 7.1W 7.5W and the ground on photovoltaic power products and the total flux as close to it as a Group A, the other as the B group. Power consumption and total flux are nominal values.


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