Japanese LED fluorescent lamp specifications and specific parameters

The Japan Lighting Industry Association (JELMA) formulated the "Direct Tube Type LED Lamp System with L-shaped Lamp Ports (General Lighting)" on October 8, 2010 for straight-tube LED lamps using light sources (JEL801:2010). standard. Alternatives such as office buildings and other commonly used straight fluorescent lamps, straight-tube LED lamps are increasingly expected. Although there have been direct-selling LED lights manufactured in South Korea and other countries on the Japanese market, the companies involved have focused on small and medium-sized enterprises. The main lamp manufacturers are hesitant to place products because there are no standards. The formulation of this standard will promote the popularity of straight-through LED lamps.

In the case of straight tube type LED lamps, it has previously been pointed out that there are problems in lamp compatibility, brightness, weight, and safety. This time the standard added to eliminate these concerns.

There are clear reasons for specifying these values. For example, the luminous flux of 2,300 lm is determined by taking into consideration actual usage conditions such as the use of dozens of lamps. When compared with a 40W class fluorescent lamp under the same setting conditions, this is the luminous flux required to obtain the same illuminance. Moreover, "a luminous flux of no more than 70% in a range of 120 degrees" is a place to pay attention to. Its feature is that it allows the light to reach a part that exceeds 120 degrees. Illuminators have the use of reflectors to obtain the desired light orientation. It is difficult for such luminaires to use bright tubes just below the tube. In addition, if the light doesn't reach around the lamp, there may be cases where "the light is just underneath and the wall is dark and it feels uncomfortable." In order to prevent this, we must achieve this condition.

Among the current straight-through LED lamps, the more prominent ones are products with higher vertical illuminance, no less than fluorescent lamps. This time the standard is no less than fluorescent lamps in all respects, and there is no difference in the use of fluorescent lamps. For example, for the products used to replace 40W fluorescent lamps, the luminous flux of the straight white LED lamp has reached more than 2300lm, the color rendering index has reached 80 or more, and the luminous flux does not exceed the overall luminous flux within the range of 120 degrees of the luminous angle of the lamp. 70% and other regulations.

In the standard-setting stage, JELMA's franchisees have put forward rigorous opinions. The conditions set by this standard are indeed technically very high. However, if you do not do this, you will see lamps that are worse than fluorescent lamps. The LED is still in the process of development, so this value has been set for the future to increase the efficiency and brightness of LEDs.

Lamps used for lighting must first ensure safety and compatibility. Currently, most of the straight tube type LED lamps on the market need to perform power supply construction on lighting fixtures, or directly install straight tube type LED lights on fluorescent lamp holders. In terms of power input, there are products that are input from both ends of the lamp like ordinary fluorescent lamps, and products that only input from one side. In this case, the compatibility of the lamp cannot be discussed.

However, most of the lamp caps still use the same "G13" type as the straight fluorescent lamps. Therefore, it is easy for consumers to mistake the LED lamp and connect it to a lamp holder that does not have compatibility. In Japan, there are various styles of lighting fixtures with G13 lamps, from old-fashioned to the latest. Different from the power circuit, it cannot be said that any lighting fixture can use LED lamps instead of fluorescent lamps.

At present, there are not many straight LED lamps on the market, and sellers can still teach consumers the correct method of use. However, after the increase in the circulation of this kind of lamp, this service level will not be maintained, and consumers are likely to have misuse. There are hundreds of millions of lighting lamps on the market. Even if the frequency of accidents caused by misuse is only at the ppm level, dozens of times occur every year. JELMA could not play a safe “ticket” for all straight fluorescent lamps that could access the G13 lamp.

For this reason, we decided not to use the G13 lamp model when we established the standard for straight-through LED lamps. Change it to a lamp named "L type". In this way, it is possible to prevent the direct-pipe type LED lamp from being mistakenly connected to a lighting fixture using a straight tube type fluorescent lamp.