Ultra Efficient Lightbulbs

[Mr Gus]

The main area leds are philips £2 specials, the conservatory ones are mostly philips (with a previous gen of philips energy saving lighting prior to that)
The non philips have lasted more or less enough time & cost to prove their worth, not poundland but not far off amazonian deals from 2016, the cooker lights are the most susceptible due to steam.

Don't think i'd use the pricey philips ones for a cooker hood, & less used rooms are on older bulbs because it makes more sense to swap out periodically (one room had a cfl replaced last year, finally) ..just like nowty's swap through, because what do you do with perfectly good bheaput older part used bulbs these days? ..back in the bulb spares box under the kitchen cabinets, avoiding recycling for a while longer, bulb box is looking "historical" by now.

I bought some non philips led over the extended LED lumens output inertia time (a very long pause) but am hoping the premium on Ultra-efficient philips will be short & prices to settle down, you cannot knock the build nor the warranty for philips bulbs which has been borne out on several occassions here, compared to buy & be done with it generic led bulbs which still last pretty well all things considered.

The important thing is to scour B&Q clearance bins periodically, they have no rhyme nor reason & are merely shelf / packaging clear outs.. for all else there is cheaper generic schmutter.

[Joeboy]

I bought from here, please post if sourced at a better price/postage. 40W warm white ses £2 per bulb incl delivery.

Price drops to £1.65 per unit if 20 bought.

https://www.ebay.co.uk/itm/175342767083

We now have a box of spiral 9W bulbs in Edinburgh awaiting rehoming around the various properties. This is actually.a good reminder to see what we have out here although I think we are already pretty much covered. Worth a check though?

Edit, oh dear!



Note to self to bring 4 of ses 9W bulbs out here.

[John_S]

I bought from here, please post if sourced at a better price/postage. 40W warm white ses £2 per bulb incl delivery.

Price drops to £1.65 per unit if 20 bought.

https://www.ebay.co.uk/itm/175342767083

We now have a box of spiral 9W bulbs awaiting rehoming around the various properties. This is actually.a good reminder to see what we have out here although I think we are already pretty much covered. Worth a check though?

Edit, oh dear!

I am confused. The specs show 100-120 lumens per watt, but I thought that 'Dubai' lights were around 200+ lumens per watt. Am I missing something?

[Joeboy]

I bought from here, please post if sourced at a better price/postage. 40W warm white ses £2 per bulb incl delivery.

Price drops to £1.65 per unit if 20 bought.

https://www.ebay.co.uk/itm/175342767083

We now have a box of spiral 9W bulbs awaiting rehoming around the various properties. This is actually.a good reminder to see what we have out here although I think we are already pretty much covered. Worth a check though?

Edit, oh dear!

I am confused. The specs show 100-120 lumens per watt, but I thought that 'Dubai' lights were around 200+ lumens per watt. Am I missing something?

I guess I'm playing fast & loose with the terms. I assumed that these were a cut price/spec and the term dubai was indicative of the filament type/overall bulb design? If Dubai is an absolute immovable spec I'll need another name? I don't tend to get hung up on this stuff. Close enough is good enough for me and I guess you get what you are willing to pay for? For me, that's 8 bulbs for £16 delivered.

[Fintray]

Dubai lamps are so named as thy were first available in Dubai, IIRC it was to do with an energy saving mandate over there.
This thread says more about them https://camelot-forum.co.uk/phpBB3/view ... ubai+lamps

[nowty]

My swap though this time were,

Outside lamps running dusk till dawn 2 x 9W reduced to 2 x 2.5W.
Porch lamps running dusk till dawn 2 x 5W reduced to 2 x 2.3W.
Hallway lamps running all day 2 x 6.8W reduced to 2 x 2.5W.
Lounge lamps running all day 2 x 9W reduced to 2 x 4W.
Bedroom lamp running typically all evening 6W reduced to 2.3W.
Conservatory lamp running as required 15W reduced to 7.3W (benefits from being brighter).
Bathroom running as required 20W reduced to 7.3W (benefits from being brighter).
Shower room running as required 9W reduced to 4W (benefits from being brighter).
Utility room running as required 9W reduced to 4W (benefits from being brighter).
Loft light running very seldom 25W compact fluorescent (final one) replaced with the ex 20W LED lamp from bathroom (benefits from being brighter).


TBD
8 x 8W in kitchen, they are reflector spots, when I bought the house they were 100W each , I replaced with expensive 25W compact fluorescent with high failure rate, then dropped to 12W LEDs with high failure rate, then 8W LEDs. I tried a 4W E27 type bulb, same brightness but they don't look right and 100% failed the SWMBO test. Need an ultra efficient 4W reflector spot to be developed.

4 x 4W E14 candle lamps in stairwell, new 2.3W are too bright, need a ultra efficient 1W frosted type to be developed.

[Joeboy]

My swap though this time were,

Outside lamps running dusk till dawn 2 x 9W reduced to 2 x 2.5W.
Porch lamps running dusk till dawn 2 x 5W reduced to 2 x 2.3W.
Hallway lamps running all day 2 x 6.8W reduced to 2 x 2.5W.
Lounge lamps running all day 2 x 9W reduced to 2 x 4W.
Bedroom lamp running typically all evening 6W reduced to 2.3W.
Conservatory lamp running as required 15W reduced to 7.3W (benefits from being brighter).
Bathroom running as required 20W reduced to 7.3W (benefits from being brighter).
Shower room running as required 9W reduced to 4W (benefits from being brighter).
Utility room running as required 9W reduced to 4W (benefits from being brighter).
Loft light running very seldom 25W compact fluorescent (final one) replaced with the ex 20W LED lamp from bathroom (benefits from being brighter).


TBD
8 x 8W in kitchen, they are reflector spots, when I bought the house they were 100W each , I replaced with expensive 25W compact fluorescent with high failure rate, then dropped to 12W LEDs with high failure rate, then 8W LEDs. I tried a 4W E27 type bulb, same brightness but they don't look right and 100% failed the SWMBO test. Need an ultra efficient 4W reflector spot to be developed.

4 x 4W E14 candle lamps in stairwell, new 2.3W are too bright, need a ultra efficient 1W frosted type to be developed.

I just know you've got a cumulative per hour total Wattage saving on this swap run?

[Fintray]

Lounge lamps running all day 2 x 9W reduced to 2 x 4W.

Nowty, have you bricked up your lounge window to reduce heat loss or is there some other reason the lounge lamps are on all day?

[nowty]

I just know you've got a cumulative per hour total Wattage saving on this swap run?

Nearly, I did a quick and dirty saving calc of just under 1kWh per day, approx 300 kWh per year. But its not just the power savings, some are brighter where they need to be and there is a circa 5 fold increase to their lifetimes. And the switching lifetime of 500,000 operations is nuts, the lightswitch is probably not rated to that.

[Joeboy]

I just know you've got a cumulative per hour total Wattage saving on this swap run?

Nearly, I did a quick and dirty saving calc of just under 1kWh per day, approx 300 kWh per year. But its not just the power savings, some are brighter where they need to be and there is a circa 5 fold increase to their lifetimes. And the switching lifetime of 500,000 operations is nuts, the lightswitch is probably not rated to that.

That's really good! Especially on something that is essentially an enjoyable flyby. I found 2 of 40W incandescent in our cooker hood a couple of months back, been in there for years. Changed out for my cut-price Dubai bulbs, lights as good now as with the 40W incandescents I think.