Upgrading an energy-saving lamp to LED No. 1

Many thanks to the manufacturers of modern energy-saving lamps. The quality of their products constantly makes us think and pushes us to new technical solutions.

This time we will consider the topic of converting a failed energy-saving lamp into an LED one. Today we'll take a more traditional route using a driver for LED, but... The most interesting part of the remodeling is itself Light-emitting diode.

Upgraded lamp

The other day I came across several samples of the Chinese electronics industry. These LEDs are interesting in themselves, although they do not have outstanding characteristics. But one thing is that given Light-emitting diode provides a 360-degree beam pattern, takes it to a whole new level and gives us a great tool for modernizing lighting systems.

Light-emitting diode
LED characteristics

As a radiator, I used the aluminum universal profile AP888, already known from the previous article, produced by Yug-Service LLC. Unfortunately, I only had a piece of it a little over 10mm thick. There was a fear that LED 9 W power may not be enough. But the desire to conduct an experiment won out.

A small drawback of this profile in relation to the new LED is that the central hole is 8 mm in diameter, and the thread of the “tail” of the LED is M6.

The easiest way out:

  • drill the hole to 10 mm;
  • screw the bolt into the M6 ​​nut;
  • Carefully, hitting the head of the bolt with a hammer, press the nut into the profile. The bolt is needed so as not to accidentally jam the threads in the nut.
press in the nut
hitting with a hammer

LED 7V, power 7-9 W, 12 V, 600-800 mA. As a driver, I used a widely used 700 mA driver for three LEDs from the same Chinese manufacturer.

Then, as always, everything is simple. We know how to disassemble an energy-saving light bulb, the main thing is not to break the bulb. And we prepare the entire kit for assembly.

assembly kit

1. Drill holes in the cover of the base housing to attach the radiator and wires.

Drill holes

2. Solder the positive wire of the driver to the central contact of the LED. Don't forget to first thread it through the radiator and the base cover.

LED contact

3. Apply heat-conducting paste (KTP-8) to the thread of the LED and screw it into place. We attach the cover of the base housing to the radiator.

Apply thermal conductive paste
screw in the LED
Attaching the housing cover

4. The negative wire of the driver must be connected to the radiator.

minus connect to the radiator

5. Solder the driver network wires into the base.

Solder the network wires of the driver

6. Collect everything into one.

Collect everything

7. The upgraded lamp is ready for use.

Upgraded lamp
ready for use

As for my concerns about the LED overheating due to the insufficient heatsink size, we can say that they turned out to be groundless. The temperature at the “LED-radiator” point after several hours of operation stopped at around 59-62 ºС (ambient temperature 23 ºС). In principle, this is acceptable, but if the radiator is increased by 5-10 mm, then you don’t have to worry about anything at all.

Everything is simple, beautiful and most importantly – accessible and not expensive.

come back
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Comments (7)
  1. slava
    #1 slava Guests 27 September 2013 16:55
    2
    In comparison, what consumes more: an LED lamp or an energy-saving lamp?
  2. Victor
    #2 Victor Guests September 29, 2013 10:50
    3
    Quote: slava
    In comparison, what consumes more: an LED lamp or an energy-saving lamp?
    In a previous article, I wrote that with an equal luminous flux, an LED lamp consumes less energy than an energy-saving lamp. How much less depends on efficiency LEDs. So Acrich2 8 W provides light illumination corresponding to a 13 W energy-saving lamp. At home in the chandelier I replaced 5 lamps of 13 W with 5 lamps of my own making, each of 8 W (Acrich2). In addition to saving energy, I received an increase in illumination by about 10-15%. Suggested in this article Light-emitting diode less efficient, but still provides savings of around 20-30% compared to similar energy-saving lamps. In addition to all of the above, energy-saving lamps do not fulfill their declared resource of 6000 hours.At best, they are only enough for 1000-2000. Here another aspect of payback appears in the form of saving money on the purchase of new lamps. Plus, the harmful effects of fluorescent lamps in general: 1. The presence of a large amount of hard ultraviolet radiation, especially in energy-saving ones.
  3. Victor
    #3 Victor Guests 30 September 2013 21:51
    1
    Depending on the used LEDs, LED lamp is from 20% to 70% more energy efficient
  4. Michael
    #4 Michael Guests 12 October 2013 18:56
    1
    Question - can you specify the exact type LED, its manufacturer, and where can it be purchased?
  5. feelloff
    #5 feelloff Guests October 15, 2013 10:19
    1
    Quote: Mikhail
    Question - can you specify the exact type LED, its manufacturer, and where can it be purchased?

    Look at the table, and you can buy it in any online store: type the brand in Yandex and the word buy, that’s all! Personally, I bought it on the radio market, the prices are lower than on the Internet. You can also order from the seller.
  6. Victor_rnd
    #6 Victor_rnd Guests October 15, 2013 11:20
    1
    Quote: Mikhail
    Question - can you specify the exact type LED, its manufacturer, and where can it be purchased?

    The entire package can be purchased here: ug-servis.su
  7. Igor
    #7 Igor Guests 25 August 2015 21:26
    1
    I'm confused by the nut-radiator transition.
    I’ll tell you a little secret... there are copper nuts (M6, for example) that can be found on the radio market,
    came complete with diodes and thyristors, and if you sharpen it, the result should be even better..