Cable Forum

Cable Forum (https://www.cableforum.uk/board/index.php)
-   Science & Technology (https://www.cableforum.uk/board/forumdisplay.php?f=26)
-   -   Lightbulb help. (https://www.cableforum.uk/board/showthread.php?t=33706152)

richard s 17-03-2018 22:07

Re: Lightbulb help.
 
Look on Amazon plenty of dimable bulbs... ES = Edison screw; ESC + Edison Small Screw.

nashville 17-03-2018 23:36

Re: Lightbulb help.
 
Interesting page

Taf 18-03-2018 11:09

Re: Lightbulb help.
 
Quote:

Originally Posted by Ramrod (Post 35941020)
..I have one of these which uses a 300W dim-able, giant edison screw, incandescent bulb.

Photo? There are some out there for commercial use that have the oversized ES thread, but they start around £45 from what I've seen. But you can buy adapters that can drop them to ES27 so you can use more modern (and much cheaper) bulbs.

SnoopZ 18-03-2018 13:06

Re: Lightbulb help.
 
1 Attachment(s)
So confused about light bulbs now, the last time i bought any they were energy saving twisty looking ones similar to the picture.

What is the equivalent to these now that i need to buy?

https://www.cableforum.uk/board/atta...1&d=1521378354

heero_yuy 18-03-2018 14:36

Re: Lightbulb help.
 
Those are CFL (Compact flourescent) nasty things with Mercury in and usually slow to get going. I've also had two go off with a bang. You can still get them and they're better than they used to be.

Modern lamps are LED*, quick to start and often dimmable. Fully solid state. Long life. They contain no nasty stuff and available in a variety of styles.

*Light emitting diode. A specially manufactured crystal that emits strong blue light in this case. Covered with a phosphor that converts some of the blue to yellow, by varying the mix you get the different qualities (Colour temperature) of white.

Ramrod 18-03-2018 15:36

Re: Lightbulb help.
 
Quote:

Originally Posted by richard s (Post 35941045)
Look on Amazon plenty of dimable bulbs... ES = Edison screw; ESC + Edison Small Screw.

Found this on Amazon but it's 400W. Since it's not an incandescent bulb, would that matter?

Edit: Tadaa! :)

edit again: £49 delivery! ......nope! :(

Hom3r 18-03-2018 15:41

Re: Lightbulb help.
 
I'm looking at gradually replacing all my bulb as they die with Philips Hue bulbs.

The downside is cost. Upto £50 a bulb.

But hall lights will be pure white and around £13, and some I might do white accents which are £25.

Taf 18-03-2018 15:59

Re: Lightbulb help.
 
Quote:

Originally Posted by Ramrod (Post 35941106)
Found this on Amazon but it's 400W. Since it's not an incandescent bulb, would that matter?

Edit: Tadaa! :)

edit again: £49 delivery! ......nope! :(


From my mate's shop... but probably better suited to a lighthouse :D

http://www.green-lamp.co.uk/product/250w-cfl-bulbs/

or use this type of adapter to use standard E27 bulbs

http://www.green-lamp.co.uk/product/...light-adaptor/

Ramrod 18-03-2018 18:08

Re: Lightbulb help.
 
Quote:

Originally Posted by Taf (Post 35941114)
From my mate's shop... but probably better suited to a lighthouse :D

http://www.green-lamp.co.uk/product/250w-cfl-bulbs/

or use this type of adapter to use standard E27 bulbs

http://www.green-lamp.co.uk/product/...light-adaptor/

8000 lumens! 'kin 'ell :D
I was about to buy that but then I noticed that it weighs half a kilo! I think I'll get the adaptor and then the world is my mollusc as far as light bulbs go :D

Taf 19-03-2018 11:23

Re: Lightbulb help.
 
Quote:

Originally Posted by Ramrod (Post 35941132)
8000 lumens! 'kin 'ell :D
I was about to buy that but then I noticed that it weighs half a kilo!D

I know many who use those lamps for raising chilli plants, and are shocked when they see it's size and weight. :shocked:

I was gifted an LED array called a UFO that kicks out 9250 lumens. You daren't look anywhere near it....

Matth 21-03-2018 01:05

Re: Lightbulb help.
 
Quote:

Originally Posted by Ramrod (Post 35941020)
Whilst we are on the topic of bulbs and there seems to be a few knowledgeable people here.....I have one of these which uses a 300W dim-able, giant edison screw, incandescent bulb.
Due to the EU rules, I'm having a hard time sourcing a replacement 300W dim-able incandescent and the LEDs that I've found aren't dim-able or 300W.
Can anyone point me in the right direction? :)

Is this it https://www.ebay.co.uk/itm/CROMPTON-...MAAOSw3aNanr8Z

Dimmable LED are designed to work with LED compatible dimmers, it's uncertain if they would provide sufficient hold current for a conventional dimmer unless sharing with a conventional bulb, and the response range could be narrow.

Brunel 21-03-2018 09:56

Re: Lightbulb help.
 
https://www.theinternetelectricalstore.com/

BenMcr 21-03-2018 10:29

Re: Lightbulb help.
 
One thing that you have to do these days - pay attention to the colour temp of the bulbs you buy!

At Christmas I decided it was time for my Dad to get swapped from CFL bulbs to LEDs - the CFLs were taking ages to start up so didn't actually help when you needed light.

However I ended ordering the wrong colour temp bulbs from B&Q - ended up with Cool White rather than Warm White bulbs.

Didn't notice until I started swapping them and wondered why the rooms looked odd.

Luckily B&Q are pretty good for their returns policy and manage to swap all that I needed for Warm White bulbs. Actually ended up leaving a couple as Cool White as they seem to be better for reading and working.

Brunel 21-03-2018 10:35

Re: Lightbulb help.
 
There is also a "Daylight white" lamp available now.

Midway between warm & cool.

Have a look on SCREWFIX or TOOLSTATION.

CPC have a large amount of LED lamps in stock.

BenMcr 21-03-2018 10:51

Re: Lightbulb help.
 
Quote:

Originally Posted by Brunel (Post 35941381)
There is also a "Daylight white" lamp available now.

Isn't Daylight above Cool White i.e:

Warm White (around 3000K) > Cool White (around 4500K) > Daylight White (around 6500K)


All times are GMT +1. The time now is 13:50.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.