Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: what would the brightness of this light be, 50W 60W 100W?
Document: This LED lamp is exactly what I needed. It is smaller than what I thought it would be, however it is the exact size that I needed for my Ikea lamp and the daylight color temperature is better for me than the ones offered by Ikea.
Incredible power for an LED. It shoots out about 50Ws of light. I used it to refurbish all my IKEA LAGRA Spotlights.
Exact replacement for IKEA reading lamp, Type R14.Bright white light comprised of nine 2835 SMD LED.Definitely highly recommended product. Will buy again!
Fits my IKEA lamps perfectly, both my floor lamp (the reading lamp) and my bedroom reading lamp. The light it gives is very white and bright, very good for the living room; however, is a bit strong for reading in bed, maybe I should have chosen the yellow light. Otherwise, very pleased with the purchase.
It's an average of $4.20 saving in energy per year, so this LED light bulb will pay for itself in less than 3 years.I am happy that now I can see better and save energy at the same time. I hope it can last as long as it claimed for its useful life of 22,000 hrs. If it does, then it will last for over 10 years based on my current usage.
The front firing LEDs on this bulb worked well with the placement of the reading light sockets above and behind my head while lying in bed. The light output was much greater and had a smoother beam than the incandescent bulbs that were replaced. Much of the old light was lost due to a poor small reflector. The small optics over each of the 9 small LEDs in this bulb directed the light right where it was needed.
My old regular E17 light bulb purchased from Walmart was only $2.50 plus tax, but it was not bright and the light color is very yellow (warm), so it made my eyes felt tired. It was a 25W, so it used a lot more energy on a daily basis also. Since I have been using the desk lamp daily, the light bulb burns out once a year due to the bulb's life is around 1,500 hours.
We have Ikea lamps that use E17 bulbs but we didn't want to use regular bulbs during summer because they produce so much heat. After looking for them everywhere online, I realized that the only two LED options were these and Ikea's bulbs. You can't order Ikea online unless it is from a reseller and we didn't like their bulbs because they are yellow (warm) light. These Aubing bulbs are white light at a reasonable price and safe a lot of money all by themselves and by reducing heat during summer.
At first, I was debating should I spend over $10 for a LED light bulb since I usually only pay less than $3 for the regular kind. I am glad that I made the choice of buying it and now my desk is very bright with white light. Plus, it is only consuming 16% energy of the regular one. I can't believe it is consuming only 4W and the 9 LED lights on this bulb delivery sufficient light that is able to light up my entire desk.
Very bright. Still going.
Answer: no