How to choose the right LED lamps?

Introduction: lighting equipment selection is one of the important factors of achievement of the lighting design, lighting technology innovation with the rapid development of LED lighting, some laboratory a month can update a generation of products, mainly in the LED lighting: long life, small volume, low thermal radiation, energy saving and environmental protection, and so on long wave band.

However, due to the LED is a new type of light source, the use of lighting in the field of time is not long, production research and development technology needs to be improved and improved. At present, the country does not have a complete industry standards, which to the use and promotion of LED lighting has brought trouble, uneven product quality and price also increased the workload of lighting designers. How to choose the right LED lighting products:

First, judging from the external appearance

A qualified products must be reasonable structure, exquisite surface treatment components, structural and functional matching, a complete and clear product labels, lamp size consistent with the use of visual spatial scales, including packaging and product specifications, etc..

Then, the light source

Due to technical constraints now most of the high quality light source to the United States, Japan, Taiwan feedback. The quality of the LED chip is the key to life, color temperature, the difference between light efficiency, of course, the control of the lighting angle. In the light of visual quality under the condition of light is more difficult to distinguish, usually require technical parameters provided by the manufacturer.

Second, the power supply

A lot of people to drive the power than the heart, enough to reflect its main. First check the parameters of the manufacturer, because the LED volt ampere characteristic has the characteristics of negative temperature coefficient, so it is not fixed, it will change with the temperature. Analysis of the main parameters: input voltage, output voltage, output current, output power, power factor, wiring mark, temperature rise, whether with over-voltage protection, over-current protection, etc..

Next, heat treatment

LED is more sensitive to temperature, in front of the negative temperature coefficient, it is necessary to examine the radiator treatment, in theory, the radiator material is more suitable for aluminum, but the distinction between the insert aluminum, aluminum, aluminum. There is a heat sink and light source and aluminum substrate, aluminum shell contact between each other, such as the size of the LED chip will directly affect the core temperature conduction and cooling effect.

Finally, lighting test

Under normal circumstances, the lighting designer to examine the samples need to light the test. Color temperature, brightness, spot shape, beam angle, lamp body temperature are the details of the lighting designer's audit, the first few steps are from the theory, the surface is judged, the final effect is attributed to the lighting test this link. It can be very intuitive to determine whether the lamp and the design results match.