How to choose your LED bulb < PreviousHow to choose your products? First, please note that there is no and there will never be any real comparison tables between LED bulbs and other so-called "conventional" bulbs (halogen, incandescent, compact fluorescent and other). Indeed, this different lighting sources don’t have the same CRI (Color Rending Index). There are 2 major families of LED today, conventional LED and highpower LED. Conventional LED ... They are the ones who originally were fitted our "appliances" devices as a standby sign or indicator. One example is the small blue or red LED indicates that your TV is in standby. This type of LEDs changed dramatically over the last 30 years and nowadays they have very different forms. It is possible to find LED in 3mm diameter, but also 4mm, 5mm, 8mm and 10mm. The scattering angle can range from 5 ° to 140 ° depending on the model chosen. Some have maintained a long and rounded shape while others have become completely flat or square. This kind of LED does develop nearly no heat. LED called CMS (surface component) are very commonly used in electronics and increasingly for lighting. This type is called SMD LED. Their size and power depends on the type of LED used and offers the advantage of obtaining a very flat product since the height of the LED usually reaches only 2 or 3 mm. The most common are the LEDs SMD 0805, SMD 1210, SMD 3528 and SMD 5050. Power LEDs ... also called High Power. Appeared only in recent years that LEDs are the future. They offer a very high luminous power (over 100 lumens per watt which is impossible with current light sources). They require the manufacture of complex cooling systems and stabilizing their power in order to achieve a balance between performance and durability. They fitted CANDeLeC LED bulbs. 1. Are all the bulbs with the same number of LEDs same? No, several factors come into play: - The brand and therefore the quality of the diode. - The quality of the electronics set by the manufacturer. - Quality design and materials selected for heat dissipation. Our only advice would be to avoid the generic or too cheap products and to buy your products from a real professional with experience in this field. 2. How is it possible to know the lighting power of LED bulbs? Now the unit of measurement in watts is obsolete, since 5W LED bulb can replace incandescent bulb or halogen 50W. It is therefore necessary to return to traditional units of measurement of light, Lux and Lumens. These units are, as well as light equivalences with older sources (expressed in watts) in all CANDeLeC product data sheets. Moreover, the beam angle is crucial. For a given light output of 800 lumens (equivalent to 75w incandescent or compact fluorescent 15w 14 ~) at a height of 2 meters. With an angle of 15 °, is illuminated disc 0.22m ² valued at 3673 Lux. With an angle of 38 °, is illuminated disc 1.49m ² valued at 537 Lux. With an angle of 120 °, is illuminated disc 37.7m ² valued at 21 Lux. So for the same value of 800 lumens you can get a power ranging from 21 to 3673 Lux ... Did you know?... With only one 380 lumens bulb illuminating a 120° angle you get the same lighting effect the a 75w incandescent bulb broadcasting at 360 °, since we get a common value of 10 Lux! A bulb with 800 lumens is supposed to be more powerful than a 380 lumens bulb .... everything depends on the angle and distance from which we light. To make things easier, just follow our advice equivalence shown for each of our products.
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