"We all know what we get from a 60watt light bulb right? 60watts tells us how much energy it consumes, we know what the light will look like in terms of brightness and colour. LEDs and fluorescents also are different
It says 1.2W so it means 1.2watts v. low 4000k is colour temperature & that's cool white verging on blue 20.7Lm = 20.7 Lumens that isn't bright (as a Halogen Dichroic may be 1000-1500Lm)
It would help if the description were more, err, descriptive!
Very low power consumption (only 1.2watts) Very low output only 20.7Lm (For decorative use) Colour temperature 4000k (bluish White)"
"I like these, but probably wouldn't recommend them. Though they are the same size as halogen bulbs, these lamps aren't a replacement. They don't cast nearly as much light - you probably need at least four times as many so the installation cost is very high in comparison. Over a number of years, the lower power consumption ought to repay you. The light they give is a cold, bluish white, which is interesting in the right application. You need an LED controller to use them - a halogen transformer won't do."
"Bought 5 lamps to replace my old halogens I found they are totally inadequate for the job lighting very poor. You will need to change to an led driver to run these lamps.
As I had these bulbs in storage for a few weeks until I got round to changing the driver after fitting the driver I found one of the lamps was faulty.
I tried to return it to screw fix they refused to change it because I had it to long even though I explained they had just been fitted! at £11 + each I was not a happy bunny. I will not be buying from screw fix again"
"I bought six of these and the required driver four years ago. They have had occasional use, maybe 1000 hours. Three have now partially failed. They fail in quarters, two have lost half, one has lost a quarter.
They have very low light output and cannot be used as a halogen replacement."