It seems a little expensive to me. I have a few flashlights of different designs that plug into an outlet and turn on in the event of a power failure. Each houses a rechargable lithium battery. Each cost approximately $10.
40-LED
That means they are using cheap 5mm LEDs with no heat sink. The LEDs would not last long if the bulb is used continuously.
Luminous Flux 280-320lm
Incandescent equivalent 40 watts
280 lm is more like 25 watts.
Color Temperature 6000 Kelvin
An incandescent bulb is 2700 K
Office fluorescent tubes are 5000 K
6000K has a nasty blue tint. Spend $2 at a dollar store - one for a 9LED 3AAA flashlight, one for a pack of AAA batteries and you can see how blue that bulb will be.
There are many (over 5000) LED 3-in-1 Night Light, Emergency Light, & Flashlight at Amazon. They are less bright, plugs into the wall and $10 or less.
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If you can't buy it at a brick and mortar store or reputable retailer, either consumer or commercial, then I would not suggest buying it. What are you going to do when that expensive bulb fails ... and with no name products like this, that is what is likely to happen. You may not get the absolute best technology, but the product will work as indicated, have passed safety certifications, and you will have a remedy if anything goes wrong.