now got 7000k ? i just know 6500k only ..
can share some photo ?

thanks ..

current using Philip 20w 2.1k lum 6.5k for outside ..
wonder 7k can be brightness ?do  you know the lumin measurement ?

btw..how do you input the AC voltage ?the Philip one a bit special compare those China tube .

thanks ..

24w produce 1920 lumen ...the covered area still smaller than the Philip 20w 2100lumen? or IM wrong ?

for Philip one ...1 wire connect to left side ...1wire connect to right side ...instead of 2 end holder ...

thanks ...

brighter and whiteer....but the area covered better than 2100 lumem?

thanks ..

Yup. it will be more widen and further. But the small number different will not give you much judge. But will have different when few yrs time usage.

When I install the philip 20W led and compare the old Fluro, I can see the old fluro shine further or cover wider area. Old T8 fluro have a higher lumens.

Even the Philip LED look whiter, it doesn't cover wider area.

You have to step back further where your eye can see the whole area in order to compare the brightness. Or if you have the light/Lumens meter to check.

Fluorescent lights are omnidirectional. Omnidirectional lights produce light in 360 degrees. This is a large system inefficiency because at least half of the light needs to be reflected and redirected to the desired area being illuminated. The need for reflection and redirection of light means that the output is much less efficient for omnidirectional lights due to losses than it would be for the same light if it were directional by its nature. It also means that more accessory parts are required in the light fixture itself in order to reflect or focus the luminous output of the bulb (thus increasing unit costs).

LEDs are extremely energy efficient relative to every other commercially available lighting technology. There are several reasons for this to include the fact they waste very little energy in the form of infrared radiation (much different than most conventional lights to include fluorescent lights), and they emit light directionally (over 180 degrees versus 360 degrees which means there are far fewer losses from the need to redirect or reflect light).

I not sure what age are you. But have you notice that, older people have problem seeing in dark or at night ?

They often complain that the place is too dark. While the young said it's fine?

That is the problem when you constantly expose to light too bright and glare.

Especially now 6500k is not enough for people. That is some alarming problem coming.

What happen if people chasing till 7500k or 8000k ?

3500k or yellow light is not dimly lit. Yellow light can be very bright if the lumens is high. Again don't confuse between bright and color or Lumens and kelvin.

Have you use before downlight bulb CFL which is 3500k 1600L ? If you use before, you know how bright that yellow CFL bulb.  

Do you know light color have wavelenght? Why street light or your car head light is yellow? Why all the car brand don't put a 7000k head light?

Brought in US. Use in US home.

haha..truth also ...not every day activity at outside house ..
its OK for my current Philip 20W tube ...