Hitachi Electric Co., Ltd. Releases LED Ceiling Lights and Fluorescent Ceiling Lights for Residential Main Lighting

Recently, Hitachi Electric has released LED ceiling lamps and fluorescent ceiling lamps for residential main lighting. The company plans to launch LED ceiling lamps on October 8 and the fluorescent ceiling lamps will be launched on September 10.

The LED ceiling lamp has a large amount of light and energy saving effect, and a large number of white LEDs are arranged in a ring shape almost entirely on the entire surface, and the light of the white LED is directed to the direct irradiation direction. By arranging the white LEDs in a wide range in a wide range, the irradiation area is enlarged, and the heat radiated by the white LEDs is not collected. In addition, in order to effectively dissipate the white LED, the white LED is mounted on a printed substrate using an aluminum substrate and connected to an iron casing. In this way, the white LED can be efficiently transferred to the casing while diffusing the heat of the white LED, thereby efficiently dissipating heat. The temperature of the white LED can be kept at a low level, so that the decrease in luminous efficiency due to temperature rise can be suppressed.

In order to avoid the "dot-like" feeling of the single white LED, the Hitachi is covered with a hemispherical transparent resin for each of the two white LEDs, and a lampshade that covers the entire light-emitting surface of the LED ceiling lamp.

There are three types of LED ceiling lamps, which can be used for rooms up to 14 tatami (1 tatami equals 1.62 m2), 10 tatami and 8 tatami. Each type is available with and without color matching. Therefore, there are a total of 6 products. In the product having a color grading function, one of the two white LEDs under the hemispherical transparent resin is a bulb color type, and dimming is performed by adjusting the light emission of the ordinary white LED and the bulb white LED. The number of white LEDs installed is 192 for a maximum of 14 tatami rooms. The white LED is a multi-chip model with three blue LED chips. About the brightness, input power and luminous efficiency of LED ceiling lamps. It is also equipped with a function "[eco] button" that controls the light irradiation according to the brightness of the external light using the illuminance sensor. In order to control the surrounding brightness, the light exposure of the LED ceiling lamp can be automatically adjusted within the range of 0 to 100%.

The price is open and is divided into different price points with and without color. It is used for 14 tatami rooms, about 85,000 yen and 70,000 yen. The products for the 10 tatami room are about 65,000 yen and 50,000 yen, respectively, and the products for the 8 tatami room are about 55,000 yen and 40,000 yen.

For fluorescent ceiling lamps, the product for 10 to 14 tatami rooms is 127.7 lm/W (the price is around 37,000 yen to 51,000 yen), and the 8 to 12 tatami room is 118.8 lm/W ( The price is about 24,000 yen to 38,000 yen. The variety of the room is 69.0 lm/W (the price is about 21,000 yen to 32,000 yen). The length of the fluorescent lamp was extended to about 1.2 times longer than the original. It can be seen from the fluorescent lamp of the fluorescent ceiling lamp that the lamps for the room of 10 to 14 tatami are arranged in four concentric circles, and the lamps for the rooms of 8 to 12 and 6 to 10 tatami are arranged in a three-fold concentric shape. The concentric circular tube is composed of a fluorescent lamp. For products in 10 to 14 tatami rooms, the fluorescent lamp can be straightened up to a length of 3680mm. In addition, the products used in the 6 to 10 tatami room use fluorescent lamps that are thinner than other varieties.

The long life of 21,000 hours of the fluorescent ceiling lamp is achieved by using a coil (triple coil) that maintains the emitter (electron-emitting substance) to increase the holding capacity. In addition, the fluorescent ceiling lamp is equipped with two white LEDs as "LED auxiliary lights". LED Assist Lamps are used as safety lights that provide minimal brightness during power outages and power outages. The fluorescent ceiling lamp is equipped with a nickel-metal hydride rechargeable battery. Even if there is no power supply from a commercial power source or the like, the battery can be continuously lit for about 5 hours. A total of eight products have been prepared, including products with the [eco] button function of the LED ceiling lamp and products with LED auxiliary lamps.

220V Inverter

A 220V inverter, often referred to as a power inverter, is a device designed to convert direct current (DC) power into 220V alternating current (AC) power. It is commonly used in situations where AC power is not readily available or as a backup power source during power outages. The 220V output voltage is suitable for operating a wide range of electronic devices and appliances, such as laptops, televisions, refrigerators, and power tools.

The main function of a 220V inverter is to perform DC to AC power conversion. It takes the DC power input from a battery bank, solar panel system, or other DC power sources and transforms it into AC power that matches the voltage and frequency requirements of the connected devices. This enables the use of electronic devices that typically run on AC power in off-grid locations or areas with unreliable power supply.

Some 220V inverters produce a modified sine wave output, which is a close approximation of a pure sine wave. While a pure sine wave is the ideal form of AC power, modified sine wave inverters are more cost-effective and suitable for many common electronic devices. However, certain sensitive equipment, such as medical devices or audio equipment, may require a pure sine wave inverter to prevent potential performance issues or damage.

220V inverters come in various types and sizes, including portable inverters that are lightweight and easy to carry, making them ideal for outdoor activities, camping, or powering devices in vehicles. Automotive inverters specifically cater to the power needs of vehicles and can be plugged into a car's cigarette lighter socket.

Efficiency is an important consideration when choosing a 220V inverter. Higher efficiency inverters convert a larger percentage of the DC input power into usable AC power, resulting in less energy wastage and longer battery life.

Overall, 220V inverters provide a convenient and reliable solution for powering electronic devices and appliances when traditional AC power sources are unavailable. They are essential for off-grid living, emergency backup power, and powering electronic devices on the go, ensuring the continuity of electrical power for various applications.

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