Dubai Lamps
Re: Dubai Lamps
interesting. I'm not sure that under-running the LED's is all that's required to achieve 200lm/w though; if it were that simple you could use a dimmable lamp and turn it down a bit.
You can buy ES lampholders if you want to do the job properly:-
E27 pendants 6"
mind you i did once get a buzz off a new 'vintage antique copper' style ES pendant i was fitting for someone: taking a shortcut i was screwing the lamps in with the power switched on and felt a buzz on my fingertip touching the thread of the lamp and the earthed outer of the pendant. The pendant had a plastic thread and the electrical contacts below; when screwing in the lamp the centre live makes first and the current conducts to the outer thread of the lamp making it live until screwed in further and the thread contacts neutral.
You can buy ES lampholders if you want to do the job properly:-
E27 pendants 6"
mind you i did once get a buzz off a new 'vintage antique copper' style ES pendant i was fitting for someone: taking a shortcut i was screwing the lamps in with the power switched on and felt a buzz on my fingertip touching the thread of the lamp and the earthed outer of the pendant. The pendant had a plastic thread and the electrical contacts below; when screwing in the lamp the centre live makes first and the current conducts to the outer thread of the lamp making it live until screwed in further and the thread contacts neutral.
450W hydro-electric
5110W pv
1.3kw Wt2 - not yet producing
6kWh lead acid - maybe 1kwh useable
LiMnCo battery made from 2nd hand hybrid car modules 3.6kwh nominal 24v.
300lt hot water tank and two storage heaters
ASHP Grant Aerona 3 10.5kw and UFH
5110W pv
1.3kw Wt2 - not yet producing
6kWh lead acid - maybe 1kwh useable
LiMnCo battery made from 2nd hand hybrid car modules 3.6kwh nominal 24v.
300lt hot water tank and two storage heaters
ASHP Grant Aerona 3 10.5kw and UFH
Re: Dubai Lamps
Oh , thats good to know , wasnt aware of that , so those adapters should not be allowed then
Well better of to intal a
E27 screw type bulb holder , one gets them for under 2 GBP
What is so special about that Phillips bulb ?
Well better of to intal a
E27 screw type bulb holder , one gets them for under 2 GBP
What is so special about that Phillips bulb ?
Re: Dubai Lamps
good question; under-running may be a part of it, but i suspect they're using high lm/w leds which would be more $$ to make. The lamps don't seem that pricy though - unless they're subsidised by the dubai gov't?
450W hydro-electric
5110W pv
1.3kw Wt2 - not yet producing
6kWh lead acid - maybe 1kwh useable
LiMnCo battery made from 2nd hand hybrid car modules 3.6kwh nominal 24v.
300lt hot water tank and two storage heaters
ASHP Grant Aerona 3 10.5kw and UFH
5110W pv
1.3kw Wt2 - not yet producing
6kWh lead acid - maybe 1kwh useable
LiMnCo battery made from 2nd hand hybrid car modules 3.6kwh nominal 24v.
300lt hot water tank and two storage heaters
ASHP Grant Aerona 3 10.5kw and UFH
Re: Dubai Lamps
... they are about 9 Euro in the shop , but cant see why any other good make like Osram cannot be choosen too like this https://www.amazon.de/-/en/LED-Classic- ... r=8-8&th=1
Re: Dubai Lamps
Because they are NOT as good as the Dubai lamp spec,billi wrote: ↑Fri Jan 21, 2022 9:14 pm ... they are about 9 Euro in the shop , but cant see why any other good make like Osram cannot be choosen too like this https://www.amazon.de/-/en/LED-Classic- ... r=8-8&th=1
7.5W for 1055 lumens, therefore 140 lumens per watt and life of 10,000 hrs.
The Dubai spec is 3 watts for 600 lumens (200 lumens per watt) and 25,000 hrs life.
https://images.philips.com/is/content/P ... i-Lamp.pdf
16.9kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Re: Dubai Lamps
Well ... OK , a huge diffrence ....
The Phillips ones cost about 9 Euro each Here in the Shop
The Phillips ones cost about 9 Euro each Here in the Shop
Re: Dubai Lamps
Please provide a link to a Dubai lamp which you can have delivered to the UK.
The point seems to be that the Dubai lamps (not the standard Philips led lamps) are not available outside the United Arab Emirates even though they seem to have been available as far back as 2016/17 in the UAE.
There is a UAE website here and are the equivalent of about £5 but I don't think they export.
https://www.luluhypermarket.com/en-ae/p ... /p/1293911
16.9kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Re: Dubai Lamps
well nowty , am not 100 % sure thats the same Phillips one , than in your link cause its a 4 watt and 840 lumen ..... and 50000 hours of life .....
https://www.click-licht.de/Philips-LED- ... r-products
https://www.click-licht.de/Philips-LED- ... r-products
Re: Dubai Lamps
They are the ones in the "ultra efficient phillips" link I found. Not the Dubai ones, but look just as good or slightly better as more lumens. Might be an efficiency upgrade to my outside security lights which are are on in the hours of darkness, I cannot remember how many watts they are, I will have to check.billi wrote: ↑Sat Jan 22, 2022 12:10 am well nowty , am not 100 % sure thats the same Phillips one , than in your link cause its a 4 watt and 840 lumen ..... and 50000 hours of life .....
https://www.click-licht.de/Philips-LED- ... r-products
Very poor power factor though, but within the current rules,
LED lamps between 2W and 5W require a minimum 0.4 power factor. LED lamps over 5W and up to 25W require a minimum 0.5 power factor. LED lamps over 25W require a minimum 0.9 power factor.
16.9kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Ripple 6.6kW Wind + 4.5kW PV > 25MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
Re: Dubai Lamps
As an electronics engineer I can appreciate the design but lighting is a very very small proportion of my energy use. Considering how much energy Dubai must use on air-con you'd have thought they'd have other priorities...