Just read an article about LED bulbs..worth reading
@JohnW2
LEDs have been on the forefront of lighting technology for some time now. As with all hot new products, there
www.thelightbulb.co.uk
Thanks the comment in the link
PRO TIP: According to
The Conversation, you can tell if a light bulb is flickering by turning on the lamp and spinning a fidget spinner in front of it: “If the spinner appears to rotate in a direction opposite to the direction of spin… then the lamp is flickering, whether you are aware of the flicker or not.”
is very useful, not tried it, but will.
The main problem is that it is not as simple as changing a bulb, to get a large LED bulb one needs an E40 screw base, the E27 and BA22d bases do not seem to have LED bulbs made for them. I suppose I could have used one of these
at 40 watt it would have lit my living room well, but the E40 base is a problem, so went for a chandelier which has 8 x 6 watt so actually slightly more wattage, problem is the chandelier is a bit too low, I miss it, but some visitors don't. At least it does move so no real damage.
But the whole eco drive hinges around how one can modify existing to use new products, and also trying to get people building new to also used them. My son-in-law is Turkish, and since so much more sun there, they moved to compact fluorescent well before here, and build their homes so one can easy assess the roof with the solar panels, mainly to heat the domestic hot water, but they have a roof accessible from the inside of the building, with a safety wall all around it, and it is used for solar panels and drying the peppers.
I am sure there is a British home some where with access to the roof, but as yet only seen it with Castles, Churches, and high rise flats.
I have tried to use the power from solar panels, I can see on PC, tablet or phone what the state of battery is, but there is no way to program washing machine, tumble drier, dish washer or other high power appliances to which can be pre-loaded and pre-set to auto turn on when battery hits 80% for example.
There is it seems moves to set EV's to charge when the power is available, but there seems to be very little integration, I will guess there will be enough solar by 10 am, so set dishwasher to start at 10 am, dryer at 12 mid day, and washer at 2 pm, but this is guess work, works some days not others.
However returning to lighting, I have since 2000 been involved with three houses, each one was originally designed to use tungsten, and to use fluorescent or LED has required alterations to the fittings, be it a chandelier, a wall light, tube, or standard lamp, changing to LED has involved changes and cost, and when it costs £100 for a chandelier that takes a lot of power saving to pay for itself.
It is clear from the bulb show that bulbs could be made with the same spread of light to those they replaced, this
bulb clearly does shine in nearly the same spread as the tungsten it replaced, but not pearl, so it has a tendency to cause glare. It says "Equal to 75w GLS lamp" and rated 8 watt, and "Compatible with existing fixtures and designed for retrofit replacement of incandescent lamps, LED Filament lamps deliver huge energy savings, minimizing maintenance cost." however failed to find any lumen output listed, so clearly just for decoration not really designed to light the room or the lumen would be listed.
advert here found other adverts where they say around 800 lumen, and prices vary from £2.50 to £10 in fact this one
Philips listed as £27.74, 17 watt, 3000 lumen and E27 base, it says it replaces a 50 watt bulb, so assume replaces some discharge bulb?
), the fact that something seems 'totally impossible' ('beyond belief' etc.) today does not necessarily mean that it really IS 'impossible' 
