White quite pronounced

Difficult to navigate between the different radiation equivalent Kelvin temperatures, sometimes too yellow 2700K, this bulb it supposed to 4000k white without being "too" industrial unlike the 6500K. Personally, I do not find my account (optically) and regrets the old and cheap filament bulbs, I even tend to think that this is all a big scam forcing us to the tube compact ( which contain small amounts of mercury, here an ecological progress ...) or LED; on my electricity bill, I hope no impact on my level. Anyway, getting back to the concrete bulb, the beam is powerful, broadcasts about 180 °, white is already "very white"; you must love.
The rear pellet heaters strongly enough, you must know, too, much like the compact tube.
The impression in the end is a little mixed. These bulbs are expensive, I think they all have drawbacks either in scattering angle in volume ("big" stuff), color temperature.
For recycling, with all plastic and electronics in the back, I ask what one shows me the final ecological balance. Apparently it is progress, I remain skeptical, it is mainly a business for which you have not much choice.