Tube Led Philips Value T8 20-36W 4000K 2100 Lm

Consumption: 20W (measured 19.4W)

Energy rating: A+

Equivalence: 36W

Lumens: 2100

Color: 4000K

Angle: 150 degrees

Power factor: 0.95 (measured 1.0)

CRI: 83

Adjustable: No

Swivel: Yes

Dimensions: 1200 mm x 27.3 mm

Long opal diffuser: 107.5 cm

Duration: 40000 hours (> = 50000 ignitions)

Price: €30.24

Source: Lamparadirecta (China)

First led tube Philips of the range Master LedTube “Value” or “high flow” that I can test.

Bought in lamparadirecta and with 5 year warranty.

Philips booklet indicates that it can last up to 50000 hours if installed in an open fixture to keep the lower operating temperature.

Like the previous tube led Philips Corepro, comes in a cardboard box with a compartment at one end where is fuse or “led starter” we should use to replace the choke of the fluorescent lamp.

If we are going to connect directly to 220V end where feed is marked with the letters N and L.

The half inlet pipe sink aluminium charge of cool leds occupies it but yet so once installed in the fixture is not appreciated than a fluorescent except that the ends of the tube are quite large and the illuminated area does not include the length of the tube.

Rotation system

This is the first led tube I see that you can “rotate”, which means that we can orient the flow of light where most interests us and if you have a light fixture where the tubes are inserted on one side instead of down to rotate them to guide them.

I put the following photos of the rotation of a 10W Philips tube system, but the system is the same:

The method of rotation is very careful and very effective: has some positions with different angles marked up to 90º and an arrow indicating the current angle.

You have to pull the tip of the tube out, rotated and are loose, and the tube is fixed in that position.Repeat the operation with the other end and we can already place tube in the luminaire.

With this method there is no problem that we take the tube by the central part when installing it, because turning it to connect it it will maintain the selected angle without moving.

In the event that we are sure that we don’t lack that tube is rotating, also sold the version “not rotatable” priced a little lower (I think it barely reaches € 1 difference).


After spending half an hour on the temperature stays between about 28 ° C and 30 ° C (at some point in the pipe rises a bit more but always below 33 ° C). Therefore, I do not think there is any problem in having this tube on up to 24 hours day if necessary.

With respect to light, shine about 8% more than a new fluorescent Philips (average measures that took in three angles; front shines almost 24% more). Approximately 41% more than the Philips Corepro already tested here above 18W led tube it shines with consumption 20W.

The only “downside” is that in the direction of the pipe ends (such as both site), yes you lose something light but in general everything is the area of soil and up almost to the height where the stem is shines wonderfully.

It is the first led tube that I test that it outperforms a fluorescent traditional in terms of amount of light, so in this case we do have a real alternative to fluorescent tubes that we save energy and not lose luminous flux.

So I’m seeing seems to be that if we want a real substitute of a fluorescent we must seek led tubes that give to the less 2000 lumens and they consume 20W, everyone else that we can find a lower price indicating that they are 18W and 1500 – 1800 lumens fail to give the same amount of light that this tube Philips nor reach the theoretical 40000 hours.

This tube is color temperature 4000K (neutral white), if you are going to replace a fluorescent cold white, then better choose one 6500 K color temperature because but Yes will notice a difference in the shades of the colors that you are used (for example in a kitchen with white furniture at the beginning would be a little rare color).

And regarding the price, is more expensive than most tubes (online stores) led and that taking into account that lamparadirecta have an “affordable” price, because if we seek this same tube in a physical store distributor of Philips in Spain they will ask us by more than €56 so its depreciation will be much longer and will reduce the savings to put this tube instead of a fluorescent.

Amortization of the tube

I will assume that it is to replace a fluorescent 36w with electromagnetic ballast and Starter whose total consumption is about 45w (the most common case), because if what we have is a fluorescent with electronic ballast whose total consumption 30W is not worth making the change because the savings in consumption does not compensate for the higher purchase price of the tube.

In “intensive” use of 20 on the day and on 2.7 hours/day this tube does not represent any savings because of their high price and it takes to pay off more than 7 years. However, we also have to assess the advantage of instant-on, has no flicker and giving a greater amount of light than traditional fluorescents:

But for a continuous use of 24 hours a day, then yes represents a clear saving of €2.5 / month and pays for itself in less than 1 year, assuming a total savings of almost €140 in “theoretical” life of the tube:

Even if it is going to be on 12 hours / day pays for itself in less than 2 years and represents a saving of almost €100 in the 7 years that should theoretically last tube.

The last time I entered on the lamparadirecta page, I have seen that a new model with the same features but with a consumption 18W 20W instead, there is called it High Output (HO) rather than Value, and must be mounted leds still more efficient to remove the same luminous flux of 2100 lumens but consuming less.


A premier brand as Philips quality led tube, which does not have temperature problems, gives more light than a traditional, fluorescent with a long duration of 40000-50000 hours and 5 years of warranty, so it clearly is a recommended purchase, especially if you will be on many hours a day.