I own four Ledare 1800lm LED lamps from IKEA. These are 220-240V 22W version. The lamps are really bright, and they were available for a reasonable price. However, after 16 months two of the four LED lamps have failed. This high power LED lamps are no longer being sold at my local IKEA shop. Since my lease is expiring next month, I was thinking whether one could eventually repair the lamps, or to look for an other alternative for the new apartment/workshop.
The lamps contain reasonable build material, especially when it comes to the aluminum heatsink put into the top of the main body. However, the aluminum body does not have improved surface are, because the whole lamp is round like an apple. Furthermore, the LEDs which produce a large portion of the heat are not being attached in a good thermal contact to the aluminum body. Also, there is little heatsink compound on the plates holding the LEDs. Thus, the design could have been a lot better, and one could have still save costs on the build materials.
One major problem what I can see with the electronics is that half of the PCB is being potted inside the aluminum body, so there is no way to remove and repair the PCB without completely destroying the lamp. Although potting is a good idea for lamps used outside, in such a case the full PCB should be potted, and not just a portion of it. Other issue seems to be with the filter cap which is feeding the LED array (all LEDs are in series). In one of the two broken lamps I have opened the filter capacitor was bulging (manufacturer is Ymin). The PCB does not contain a mains filter cap, so the controller IC on the board has to take care of pulsing the gate of the FET located on the PCB to charge the cap to a peak voltage.
My personal conclusion: I will have to look for a replacement LED lamp, which fits into the European E27 light socket, and it provides about 2000lm of light output.
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