LED light bulbs???

[thebishman]

Ive replaced all ceiling lights to Led bulbs. Much nicer light strength. Got them whilst on a deal from B&Q. Over a year ago now and not one has blown.

[VapingBad]

I have tried quite a few from Screwfix, toolstation, B&Q & LED Hut and by far the best have been these dimmable 5 W GU10s cool white or warm white worth the money IMO none of ours have failed yet & dimmable can be used anywhere.

Screwfix have the same brand on offer ATM 5 x 3 W for £10 not dimmable great value if you don't need them really bright.

A word of caution if switching to LEDs on a dimmer switch a lot of dimmers minimum wattage rating is too high for LEDs and you will probably need to spend £20 on a new dimmer switch.

[DiscoDes]

The Poundland ones look good!

[DiscoDes]

BTW I've been trying to stay out of this thread, as some of you will know I work in the lighting industry and sell lots of LED's albeit ones for Commercial use.

A few tips when buying LED's

If you're replacing Halogen downlights either GU10 50W or MR16 50W you need at least 400 lumens output to give the same amount of light, this value should be shown on the box.

Colour Temperatures : The light output colour is measures in degrees kelvin.
To replicate the colour of a Tungsten lamp (you normal domestic lamp or downlighter) you need acolour temperature of 3000k - 3500k (warm white)
If you want a nice white light that shows up colours well then go for 4000k (Natural or neutral white)
If you go for lamps at 5000k or over you will not get true colours under them as the blue component is higher.

MOST LED lamps are not dimmable, certainly the lower priced ones, check the box if you need t use them with a dimmer.

Lastly what you put in a light fitting is a LAMP not a BULB, you plant bulbs in the soil to get tulips

[nanotm]

the poundland lamps are good value but the gu10's work best if there is the heat extractor fan in the fitting in terms of longevity,

i also found the same poundland lamps online for around 50p each when ordering about 20 of them .... got to love led's though use a fraction of the power and often produce more light and half the heat in the process, they also don't getto the point of burning your skin even after 30+ hours of continuous use on the b22 fittings with the finned aluminium heat sink case.... i know because i always burned myself in the past when swapping bulbs and every time i get a new bulb through the post i just have to see if it works before putting it in the cupboard for when its needed ........



DiscoDes

i found the sunlight grade lamps are the best for general use because it feels less harsh on the eyes, there also a cheap alternative to those expensive sad lamps



besides the lampshades often difuse the light givne out by the lightbulb


also i thought the lamp was the non ceiling movable assembly, you get side lamps room lights and they both take lightbulbs ..... the changes coming from the old hurricane or candle lamps being non fixed and fixed stuff  (wall /floor /ceiling fixed position) were lights, or another way if its a hard wired switch on the wall its a light and if its got an independent switch on the side or the cord its a lamp........

just to be pedantic and not let any more yankism into our language

[DiscoDes]

nanotm

If you watch that Youtube video through BigClive tears down the lamps and the construction is not too bad for what is effect a very cheap lamp. You will easily pay over £5 for a similar one from a Supermarket.

I was just trying to give some general guidance on LED lamps for the "less enlightened"

In the Industry the thing, be it a box, tube drum, or even a flex with a lamp holder on is a Fitting, the Americans call them Fixtures, which I detest!

The Lamp/Bulb thing comes from years ago when doing my Apprenticeship and the lecturer tore a student off a strip for calling lamps bulbs

[VapingBad]

Feb 26, 2016 15:20:03 GMT DiscoDes said:

nanotm

If you watch that Youtube video through BigClive tears down the lamps and the construction is not too bad for what is effect a very cheap lamp. You will easily pay over £5 for a similar one from a Supermarket.

I was just trying to give some general guidance on LED lamps for the "less enlightened"

In the Industry the thing, be it a box, tube drum, or even a flex with a lamp holder on is a Fitting, the Americans call them Fixtures, which I detest!

The Lamp/Bulb thing comes from years ago when doing my Apprenticeship and the lecturer tore a student off a strip for calling lamps bulbs

I had an electronics lecturer like that if you did not leave a space between the value and an SI Unit (EG 2,500 mWh and not 2,500mWh), it's stuck with me but the rest of the world don't seem to realise or care

[nanotm]

Feb 26, 2016 15:24:15 GMT VapingBad said:

Feb 26, 2016 15:20:03 GMT DiscoDes said:

nanotm

If you watch that Youtube video through BigClive tears down the lamps and the construction is not too bad for what is effect a very cheap lamp. You will easily pay over £5 for a similar one from a Supermarket.

I was just trying to give some general guidance on LED lamps for the "less enlightened"

In the Industry the thing, be it a box, tube drum, or even a flex with a lamp holder on is a Fitting, the Americans call them Fixtures, which I detest!

The Lamp/Bulb thing comes from years ago when doing my Apprenticeship and the lecturer tore a student off a strip for calling lamps bulbs

I had an electronics lecturer like that if you did not leave a space between the value and an SI Unit (EG 2,500 mWh and not 2,500mWh), it's stuck with me but the rest of the world don't seem to realise or care

when i first started there was a difference between the two (1993) but convention changed about 1996 when a new series of standards came out, most people in the world didn't conform to our way of thinking and often put the values as mWh2500 so the new version everyone agreed on was number+unit, (its probably got an ISO or ESO number as well) and that replaced the BSI (previously the majority of ISO formats had been copied from BSI) you can thank the EU for subjugating to irrelevance the premier standards system in the world....  that was the imparted wisdom i gained in y2k whilst being told I had failed the critical marking on an exam because of it....along with everyone else on the course so the results were altered on complaint  (we hadn't been taught that during the course) to reflect the more correct 100%  marks .....most of the others were barely scraping a pass despite me having most of the time goofing off and them studying like mad ..... the following module wa marked according to the new standard and i spent most of the time helping the others understand the course material (but i still insisted on doing it with fag packets in the bar) most of them ended up ahead of me in the carear pile despite needing help to pass every test..... it wasn't my fault i just knew what i was doing through practicle applications for 4 years and they had spent the time goofing off between courses .....

[VapingBad]

Yes they are International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) governed now nanotm, but were formed between 1948 & 1960 when they became Système international d'unités. I started my degree in 94 and they were all we used, IDK if that was an IEE requirement as it was an IEE accredited BEng.

[calnorth]

I still have trouble with cycles...I mean hertz. khertz and kcees.

[nanotm]

VapingBad yeah that would be the old "industry must comply within 12 months and education in 10 years" cobblers, I did the education system course and everything we were taught was at least 7 years out of date, I did an industry based follow up course a month later and everything was totally different.... and that was on medical equipment.... some stuff never changes though like the power triangle and I need a chart to work out a resistors value....

[DiscoDes]

Feb 26, 2016 16:31:36 GMT nanotm said:

VapingBad yeah that would be the old "industry must comply within 12 months and education in 10 years" cobblers, I did the education system course and everything we were taught was at least 7 years out of date, I did an industry based follow up course a month later and everything was totally different.... and that was on medical equipment.... some stuff never changes though like the power triangle and I need a chart to work out a resistors value....

No chart needed.

Bad Boys R*pe Our Young Girls But Virgins Get What God Sends

[calnorth]

when did the tolerance colours get in cos it used to be Get Wise...or similar?

[DiscoDes]

Feb 26, 2016 16:50:41 GMT calnorth said:

when did the tolerance colours get in cos it used to be Get Wise...or similar?

Maybe I'm showing my age.......

I learned that in the late 70's - early 80's and yes the last 2 are the tolerances

[VapingBad]

Feb 26, 2016 16:31:36 GMT nanotm said:

VapingBad yeah that would be the old "industry must comply within 12 months and education in 10 years" cobblers, I did the education system course and everything we were taught was at least 7 years out of date, I did an industry based follow up course a month later and everything was totally different.... and that was on medical equipment.... some stuff never changes though like the power triangle and I need a chart to work out a resistors value....

But degrees are more about demonstrating you can learn and apply knowledge than collecting it, well in science, engineering, medical, law and many other professions anyway.