Bulb Type | Status | Light metering suite |
CFL "Era" 20 W 2700 K | cold start | 30 |
warmed | 131 | |
Incandescent 95 W | - | 101 |
Lamp «Gauss LED» 2700 K 12 W < / | cold start | 146 |
warmed | 137 table > Well, it is evident that this test LED lamps (at least those that were with me) really surpass all that now can be screwed into a regular cartridge E27 (except, perhaps, some exotics). With bulb is clear - and so I guessed that the result will not be too impressive. Interesting to compare the LED lamps and CFLs are still popular. Immediately evident that in the first ten minutes of CFL change the brightness by almost five times. In practice, this means that the domestic scenario, "entered the room (closet) for two minutes to find something" they fit worse of all - by the time the working mode of their likely already turned off. This is in addition to gas-discharge lamps, and so can not tolerate frequent switching, though, will put in the closet, they may be less frequent, but, nevertheless, of short duration. LED lamp, contrary, several lower brightness as heating - the voltage drop and therefore the power (constant current) for the LED is heated less. Nevertheless, the difference in brightness is not wearing a stunning nature as in the case of CFL (which indirectly indicates relatively good heat dissipation particularly in those lamps). By the way, it is seen that after heating and the difference is still in favor of LEDs, although its size is such that we can assume illumination created and those and others, are approximately equal. However, we are talking about approximately equal illumination created dvadtsativattnoy dvenadtsativattnoy CFL and LED-lamps - saving power almost doubled. About incandescent bulbs can not even talk - with many times more power consumption generated illumination they lose and CFLs and LEDs. Also, as I mentioned above, in my devyanostopyativattnye lamp chandelier screwed at all impossible, so in reality with incandescent I would not get even a hundred of these suites. Of course, this limitation is due to the heating. Incandescent lamps, obviously, already out of the race, so let's compare the CFL and LED lamps on the heating. These pictures were taken after a ten-minute warm-up. It is seen that CFL heated to one hundred degrees or more, while the maximum temperature of the LED lamp is only about sixty. That is, the ability to burn yourself on the CFL, in principle, there is a (protein starts to fold at eighty degrees Celsius), while the LED lamp is impossible in principle. A trifle, but nice. More measurements h4> So, we figured out that from the point of view of those characteristics that come to mind first, LEDs clearly better. Time to talk about the finer matter, such as power factor and ripple factor. About these hakteristikah somehow remember all rare and, of course, their (yet?) Have never written on the packages, but in vain. |