E27 LED Bulb 3W SMD 5730 Warm White/White Globe Light AC 220V
A part of the review has been auto-translated.
le ho solo provate per vedere se funzionavano, per ora posso solo dire che la qualità costruttiva sembra buona e fanno una bella luce.
As I bought more after my last reviews, I found they improved the newest 2015-Version a bit. So the milky cover-glass is a bit better now ( more light can pass now ) and the heat-sink is 1mm bigger/longer. It's still not as good as the version 2014 was, but compared to other 3W globe-bulbs, it's one of the best you can buy for this low price ( and it's really warm white ). And fast shipping from BG as always. Thanks !
This was the very best E27 3W bulb for the price, I can find on the internet ( super heat-sink design for a very long lifespan, good power-converter with low reactive power -> about 3.2W@AC237V with power-factor 0.7, so less than about 2VAr -> not 15..20VAr as the other cheap 3W bulbs, and good looking silver-design ). So I bought more since my last review. I get 5 ( with Date 2014 ) and 5 ( with Date 2015 ) and it looks like they changed the LED's inside from high efficency ones ( 2014 ) to lower efficency ( 2015 ). The version 2015 has about 20..30% less light-emission for the same power input (and that's important with a 3W) ! I ordered one more and was happy, as I get an older 2014 version again. As I need still more, I'm even thinking now of replacing the LED-PCBs inside if I get version 2015. Till now, BG service gave me no answer, about reordering specificly the old version 2014 again.
Good heatsink design. Gives good light for a 3W bulb. But be very carefull as the edges are very sharp, so as you not cut yourself in the fingers when screwing it into the socket.
Look a bit of a cheap construction comparing with more expensive LED bulbs I buy locally but give satisfactory light for the Wat they consume. I will use them in a stairway to minimize energy cost and the same time provide adequate light. To my tests perform very well for the task. Of course time will prove their durability. I expect to have them there for many-many years. Practically to forget them.