Cob, filament, and pearl LED lamps, watts to lumen, etc.

[ericmark]

The filament LED

I regarded as being for display, seen them in pubs, often need to take menu outside to read it as light so poor, and the cob LED reverse, it does not look very good, so in the main I fitted the pearl LED bulb which basic shines up from the base, and the cover defuses the light. But as one looks at Lumen - Watts one sees 806 Lumen from 7.3 watt for pearl and 805 Lumen from 6.5 watt filament, the cob 800 Lumen from 7 watt, but in general the cob design can allow a larger bulb to be fitted, from 7 to 18 watt seems common, where the other two seem to be lower wattages. The smart version seems to be pearl type, although did find these which show an impressive 7W 800LM, but expensive at £15 each.

However, it seems the LED is moving on, but the light direction is also changing, I look at this attempt to redirect the light from a pearl bulb, I reversed the tin foil after, I wanted a smart bulb, so I could switch in on before leaving the car, and the smart cob bulb is 3 x cost of pearl at the moment. However, it seems things have moved on, and we now have the option of bulbs which shine 90° to base, like the old tungsten bulb.

But I have swapped bulbs as daughter complained giving her a headache, swapped bulbs to upgrade to smart, and I am left with a draw full of good bulbs, so loathed to buy more. I had run out of BA22d, and my wife picked a filament type when shopping, the only BA22d she could find in Morrison's, and I fitted in the shed, then realised how much better it lit the shed.

I look at the chandelier got to increase light output as only one lamp in the room, which is still not really enough, so we use standard lamps, and display lights to supplement it, and wonder what 8 x E14 filament type LED's would do to room lighting? But hunting for bulbs found a lot of 4 watt versions, at 400 lumens, and some adverts could not find the lumen output.

But has anyone changed to filament bulbs, and if so was there an improvement in spread of light?

 

[AndyPRK]

yes, filament LED's can come in low output versions, but they don't have to! You can get bright ones too! Their main advantage is when you want light to come out the sides.

If you want light to some out the top, go for the traditional LEDs ones

 

[AndyPRK]

While not filament, these are good for a 60W replacement. 330° light output.

If you want more than one, just ask her how many you require and she will sort it.

Diall B22 60w Warm White Lightbulb X1 | eBay UK

not opened or used. old b+q stock therefore untested. I have 6 bulbs available if you want more please message me.

www.ebay.co.uk

filament ones use less watts, but cost more. Think I prefer the above

 

[Harry Bloomfield]

The filament LED

I've not tried those yet, I'm not inclined to, the examples I have seen, they are only decorative. I tried a couple of cobs, but they seem to overheat far too easily, and commit suicide. Most of what we use are these , but I'm careful to ensure they are well ventilated, for cool running. Other than that, I use fittings, which are complete with integral LED.

I'm not drawn to smart lamps at all, though we do have a couple of combined ceiling fan/lights, which are smart, as in remote control for speed/brightness/forward/reverse, plus bluetooth. They were just to do away with the portable fans, which in summer, suffer the most heat from the sun.

 

[ericmark]

Used cob lights in wife's bedroom as only bulbs I could find G9 which did not flicker or say on dimly, when using an Energenie smart light switch, as wanted a switch to work with a remote control when in bed. They work well, but are not legal as no watts or lumen marked on bulbs, so can only buy off the internet. I want to where I can support local business, so not keen on using internet if I can help it.

I want smart controls for outside lights, tried PIR control, and not amused when lights go off with hands full of shopping, so being able to turn on outside lights with phone, before I leave the car, is important to me. Some smart switches, some smart bulbs, and some smart socket adaptors.

But until the last filament bulb fitted, I had considered them as decoration, not real lighting.

 

[Harry Bloomfield]

Some smart switches, some smart bulbs, and some smart socket adaptors.

Quite a large area here, and very dark. I have a combination of lighting. One 8w, in a lantern fitting, on dusk until 11pm, via a smart plug adaptor, a set of around 6 or eight solar PIR triggered lights, which are very effective, then two high level HPS fittings, providing a good amount of light on the drive, with the second one lighting up the garden. These last, are also on a smart plug, so can be turned on via Alexa, on the phone, or by spoken command, via a DOT, of which we have four versions.

 

[ericmark]

2 x carriage lamps on simple switch by front door, 4 x carriage lamps back door, flat doors, one lamp on a pole at pond, 1 bulkhead lamps, one on the shed, and one above path, so in all 9 lamps around 10 watt each around the house and drives, also some solar lights, a bit useless, only really work in summer. And a string of lights on the balcony.

 

[Harry Bloomfield]

also some solar lights, a bit useless, only really work in summer.

Agreed, but PIR solar, are very different, very effective.

 

[foxhole]

Have some of those small filament bulbs, but tend to have a high failure rate , many slowly reduce lumen output .

 

[JohnW2]

< a lot about 'lumens per watt' with LEDs>

Isn't life too short to warrant spend time thinking about, let alone worrying about, the 'lumens per watt' of light-emitting devices consuming less than 10W?

 

[AndyPRK]

Well at least it might save a few pennies. More worth while than worring about a bit of sleeving which has no function.

 

[JohnW2]

Well at least it might save a few pennies. More worth while than worring about a bit of sleeving which has no function.

I'm not convinced that either is worth worrying about

 

[securespark]

I lie awake at night worrying about both.

 

[JohnW2]

I lie awake at night worrying about both.