how ?

Need some skill to do.

2 way. Either use power supply to check what voltage or find out the component spec and running circuit.

No skill, just throw it away.

haha...keep it 1ST..

i bought philips T8 led tube comes together with a bypass starter. very easy to change on your own

Hello everyone, I'm not really keen to create new topic for asking this only.

Which/what brand t8 led is comparable to conventional fluorescent t8 in term of brightness?

I did try one of t8 led tubes from Mr DIY rated around 1700 lumens(not sure exact value, plus minus 100) and really obvious how dimmer it is compared to conventional one.
Conventional t8 36W gives around 2600 lumens(at least Philip's).

you can't compare this apple to apple
Conventional fluo T8 emit 360, which your 2600 lumen will need to cater for the optical/reflector loss.

For LED T8, you can ask for 2100lumen or higher.

Go get this Philips ecofit 20W T8 Led. It have 2100l.

It's almost equal to conventional 36W T8.

The 6500k make you feel like 2700l.



This post has been edited by ozak: Oct 31 2019, 08:51 AM

Will keep that in mind. Cheers.

Only lighting enthusiasts know the importance of CRI
You might have to seperate the two t5 lighting apart to give a thoroughly evenly spread illumination.

This post has been edited by Uncle 6: Nov 2 2019, 01:42 PM

Being potentially cheapskate here.
Worth to get one of these? How would it fare against the Philip's?

https://shopee.com.my/product/142282385/223...8912?smtt=0.0.9

https://shopee.com.my/product/53595731/1042343553?smtt=0.0.9

It's entirely up to you. Never try those before.

1. You can't be sure of the safety of the product. Philips brand have better brand image, in the event there's product issue, they shall react on it.
2. None of the product states their PF, so if the product u purchase have very low PF, you will end up consume more energy.
3. i've installed LED from Philips for the last 6 years

One of them actually stated(on other product page, basically same item). >0.9

Think I'll take my chances. Probably one or two just to try out.

This post has been edited by UnknownH: Nov 13 2019, 06:48 PM

Just installed 4 feet LED T8 tube lights = 24W/7000K = brighter than old 36W fluoro lights = no hurt eyes reading on white paper. Cost me RM15 per set, ie tube and bracket, from nearby hardware store = no need ballast and starter.

Anyone know how to wire up 2 separate LED lights, eg for a large living room.?
.

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

thanks ..

.
https://www.aliexpress.com/item/32797464152.html

Sorry, only got a possible link, no photos because too much of a hassle to post one here.

An electrical lighting shop nearby my house also got sell 4-feet LED T8 frosted tube lights rated at 30W/7000K for the same price of RM15 per set = very bright because inside got more individual LED bulbs = consume more electricity.
....... Also got 22W/6500K ones for RM10 per set but not as bright as the 24W/7000K ones. You may also be able to buy clear tube ones = but the LED bulbs are glaring to the eyes if at 7000K brightness.

I also bought 2-feet 11W/6500K ones for the bathrooms. Same price of RM15 per set.

So, I recommend either 24W/7000K or 30W/7000K frosted tube ones for large rooms like living room, kitchen and bedrooms.. For a normal living room, 6500K not bright enough.
.

This post has been edited by lurkingaround: Nov 17 2019, 09:33 PM

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 ..

.
It's 1920 Lumen for the 24W/7000K LED light.

I think both Lumen and Kelvin can be for brightness/whiteness, eg no point having 2000 Lumen(= very bright) at 3000K(= yellow light) if you want full white brightness. ....... https://www.earthled.com/blogs/led-lighting...lvins-and-watts - What is the difference between Lumens, Kelvins and Watts?

The included bracket for the LED tube light has 2 electrical wire connectors from the 2 end-holders of the tube, for connection to the Live and Neutral wires coming out of the ceiling or wall. The wire connections are reversible, ie you can connect the L & N wires either way, to complete the circuit.
.

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 ...

Your Philips 2100 Lumen light is likely brighter but my Wurui 7000K light is whiter.

Also, my Wurui 24W light has more LED bulbs inside = this may mean that my Wurui light is overall brighter and whiter than your Philips light.

I could have gone for the even brighter 30W/7000K light but preferred not to consume more electricity since the 24W/7000K light was already bright enough for my living room. Similarly, no point putting the same bright light in my small 7' X 5' bathroom = I used the 2-feet 11W/6500K light.

It still boils down to personal preference.
.

6500k,7000k or 3000k is a light color temperature. 3000k is a more yellowish white. While 6500k is more white. Some manufacturing keep it short as warm light and day light.

Lumens is brightness. 2100L is more brighter than 1700L. It is a correct measurement of the light brightness.

Watt is a power of the electrical appliance. The higher the watt, the more consumption of the eletricity.

From this, watt doesn't tell you how bright the light. It only tell you the light power consumption.

So how efficiency is the light?

A 24w led light produce 1920 Lumens , 1920/24 = 80L per 1 watt. It's mean the light use 1W of power consumption to produce 80L of light brightness.

Take another Philip T8 led. 20W produce 2100Lumens, 2100/20 = 105L perwatt.

That means, Philip Led T8 is more efficiency and save more as a LED light.

People always confuse between color of the light and brightness. Always read the spec of lumens = brightness and K = temperature color of the light.

You will be able to tell how bright is to step back far from the light. The overall shine the area will be lesser or further.

Having too high k light 7000k will not give higher brightness. It's the color that make you "feel" bright. Too high K will cause glare and also cause your eye have difficult look in the dark when getting age.