Incandescent or fluorescent or LED

I present to your attention a review dedicated to the comparison of 3 types of llamas: incandescent, fluorescent, LED. I will try to answer the question what to buy glow / lumen / LED?
So. In our experiment will participate 5 lamps of different capacities and types.

From left to right:
Incandescent lamp 60 W (in the photo is missing - borrowed in the stairwell because I did not find the house. The lamp was returned to the staircase and does not participate in the photo shoot)
Incandescent lamp 93 W
LED Bulb 3V Warm White
LED lamp 9 W Warm white
Mercury lamp photon 26 W 4200 K Cold white

Compare Lamps by price

Lamp	Orient price, rub
60W filament	ten
93W glow plugs	12
LED (Light Emitting Diode) 3W	? (250) *
9W LED	1100 (300) *
Photon 26 W	150

* means that the price indicated in brackets is the one at which the lamp was purchased on a Chinese website, the first price is the price in Russia

This table shows that the undisputed leader in terms of price is the incandescent lamp.

We will take a photo of these lamps in the same conditions
All photos exhibit the same shutter speed / aperture / sensitivity (ISO)
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First shot - directional light
1 filament 93 W


2 LED 9W


3 filament 60 watts


4 Gas 26 W


5 LED 3W

Personally, my opinion is that a 93 W, 9 W, 26 W lamp shines equally in these conditions.

We will conduct the second shooting with an open lamp
1 filament 93 W


2 LED 9W


3 filament 60 watts


4 Gas 26 W


5 LED 3W


From the photographs it can be seen that the LED at 9 watts can be compared with an incandescent lamp of ~ 70 W, with the exception of the directivity of the LED. Nevertheless, from personal experience, it is impossible to look at the svd lamp to the eye, in contrast to 60 watts of incandescence.

Let's calculate the savings.

Let 1 kWh cost 2.3 rubles
Then when using the lamp in the corridor in the mode from 7-00 to 9-00, from 18-00 to 23-00 Mon-Fri
from 10-00 to 23-00 Sat, Sun
we will receive what will be in a month ((2 + 5) * 5 + 13 * 2) * 4 = 244 hours of work
Recalculate in rubles
For incandescent 93 watts. (one is not enough, but suppose that one) 244 * 0.093 * 2.3 = 52 r / month
For incandescent 60 W (2 lamps are needed because dimly) 244 * 0.06 * 2.3 * 2 = 67 p / month
For LED 3W. (about 3-4 is needed very dimly) then 244 * 0.003 * 2.3 * 4 = 6.7 r / month
For LED 9 W (you need 2, because dim) then 244 * 0.009 * 2.3 * 2 = 10.10 p / month
For Energy 26 W (generally shines quite well, but one lamp is not enough, we leave one) 244 * 0.026 * 2.3 = 14.6 p / month

Suppose that the gas, as well as the LED, will work for 2 years in good wiring conditions (I have been burning in the kitchen for 2 years), and the incandescence is 0.5 years
Then we calculate the cost of lighting, taking into account the cost of the lamp

For incandescent 93 watts. 52 * 24 + 12 * 4 = 1296 r / 2 years
For incandescent 60 W (2 pieces) 67 * 24 + 8 * 10 = 1688 r / 2 years
For LED 3W. (4 pieces) 6.7 * 24 + 4 * 300 = 1360r / 2years
For 9W LEDs (2 pieces) 10 * 24 + 2 * 1100 = 2440 r / 2 years (10 * 24 + 2 * 300 = 840 r / 2 years) *
For Energy 26 W 14 * 24 + 150 = 486 r / 2 years
* Price for ordering lamps from China, not buying in the Russian Federation

Conclusion.
Currently, the market for LED lamps in Russia is very poorly developed, and prices leave much to be desired. Switching to them is not profitable and it is not yet known how long the LED lamp will last. The leader of profitability remains a gas energy-saving lamp.