At the beginning of 2014, I bought the first LED lamps that appeared in IKEA stores. Four of these lamps were installed in the lamp in the kitchen, two have survived to this day. I tested them and compared the results with those obtained eight years ago.
Lamptest started with these lamps, this lamp is in the site database IKEA 202.225.52 E27 LED1207G11 has number 2 (number 1 for an incandescent lamp).
The lamps are quite different from those that you can buy now: they have a glass, not a plastic shade and they are very heavy - 183 grams.
In 2014 I tested these lamps with Viso Light Spion and Lupin. The lamp consumed 9.8 W, gave 586 lm, color temperature 2741K, color rendering index CRI (Ra) 92.5, ripple factor 20%.
All this time the lamps were working in my kitchen. Two burned out, and two are still working, but they clearly began to shine dimmer. It's hard to say how long the lamps lasted, but if we assume that they shone on average for three hours a day, it turns out to be ~ 8800 hours.
I tested one of the lamps and got these results.
The luminous flux has decreased by 20% and now stands at 469 lm. Color parameters and color rendering have not changed much. Ignore the reduced ripple factor - it was measured by different instruments using different formulas for calculation.
Now I have replaced all four lamps in the kitchen with "eternal" lamps made from new Lexman (https://ammo1.livejournal.com/1303704.html).
Let's see how their light changes in a few years.
Peace for everyone!
© 2022, Alexey Nadezhin
For twelve years I have been writing about technology, discounts, interesting places and events. Read my blog site ammo1.ru, in Learn, Zen, Mirtesen, Telegram.
My projects:
lamptest.ru. I test LED lamps and help you figure out which ones are good and which are not so good.
Elerus.ru. I collect information about domestic electronic devices for personal use and share it.
You can contact me in the Telegram group @ammochat.
#led#LED lamp#lamp test