Hongkong R & D led LED bulbs lower carbon emissions

July 27th, according to Hongkong's big public network reported that Hongkong can be said to be one of the world's most shining cities, spending a lot of energy in general lighting and advertising and decorative lighting. In recent years, from all walks of life in Hongkong on energy efficiency and environmental issues related to the use of increasingly attention, enterprises and individuals to participate in the "Earth Hour" global energy conservation activities is also gradually to the development of environmental protection, the visible illumination is represent the general trend.

New lighting technology

Light emitting diodes (LED) must be the favorite of environmentalists. LED is not only very long life, but also durable, small size, fast switching, lighting technology developed from the LED has a very high energy efficiency, more importantly, LED lighting carbon dioxide emissions are very low. In addition, LED is different from the light bulb, it does not contain mercury, discarded as a general waste disposal, will not cause special damage to the environment, let alone ten times longer than the light bulb. Thus, LED is the best choice for environmental lighting.

The LED bulb is lighted by the movement of electrons, and its light is not so bright, so it is not dazzling. LED lights to light up on the LED drive, the driver's role is to provide a stable and reliable power supply for lighting, LED lights to make more benefit, and can be compatible with other lighting devices, a driver, LED lamp can be used anywhere, even can directly replace the commonly used halogen bulb.

Hongkong Institute of Applied Science and technology LED lighting technology has matured, to promote environmental protection lighting add a force. At present, it has been successfully transferred to the industry for the development of a small LED driver for general lighting facilities such as MR16 LED bulbs. Expected in the next few years, the market demand for LED lighting products will be multiplied.

The current of LED bulb can be adjusted by two kinds of control mode: pulse width modulation (PWM) and pulse frequency modulation (PFM). PWM control is a control algorithm, control signal is modulated into the signal of pulse duty ratio (i.e. the duration of positive pulse and pulse cycle ratio), because this is a fixed frequency pulse signal of the signal, it has powerful energy at specific frequencies, or will affect other electronic devices. On the other hand, under the PFM control mode, the controlled signal is modulated into the frequency of the pulse signal, and the energy is scattered on the broad spectrum, which is not a threat to the surrounding devices.

LED hid driver

Replace general lighting equipment

Hongkong Institute of Applied Science and technology of the LED driver with current PFM control of the lamp current is modulated by a PFM controller control, can not only ensure the bulb and other electronic devices that are compatible, it can reduce the electromagnetic interference. In addition, the Academy's LED drive also features a number of features:

(a) high volt input: this LED drive can output current of 350mA to 1A in the working voltage of 30V, high efficiency up to ninety-five percent; (two) high accuracy current is modulated within the current program four percent; (three): given the adjustable light dimming is an important element of general lighting. ASTRI LED driver also has a variety of dimming methods, such as through the PWM signal or DC signals dimming, help LED lamps to replace inefficient lighting equipment currently in use; (four) with complete protection: protective device performance of LED drive, from too hot or too large current damage; (five) low cost: the drive structure is simple, small steel mould, casting manufacturing factory in the mainland, so the cost is low, suitable for portable high brightness lighting system.

Compared with the existing lighting, LED lighting technology more environmentally friendly, more energy, more money, and the LED bulb and other electronic devices are compatible, believe that LED will become the future lighting lamp equipment choice.