Led GU10

[brackwell]

Always keeping out an eye on led bulbs and wondering if now is the time to jump. I already have a 3w and a 5w but only 5W ok for me.

Looking at one co. offering i noticed this table. What caught my eye was compare part code 14445 with 14570. Same beam angle but for 2w more the lum.flux goes from 220 to 475.!!  The co. just puts this down to the 7W being the latest advancement.

http://www.lightplanet.co.uk/products/led-spot-lights/gu10-spotlights-c-344_311_312.html



Kudos Part Code    Fitting    Power    Colour Temperature    Beam Angle    Luminous Flux
14305    GU10    3W    Warm White    38    130
14310    GU10    3W    Warm White    60    130
14320    GU10    3W    Day Light    38    160
14325    GU10    3W    Day Light    60    160
14405    GU10    5W    Warm White    38    150
14410    GU10    5W    Warm White    60    150
14420    GU10    5W    Day Light    38    220
14425    GU10    5W    Day Light    60    220
14430    GU10    5W    Warm White    60    160
14435    GU10    5W    Warm White    120    160
14440    GU10    5W    Day Light    60    220
14445    GU10    5W    Day Light    120    220
14505    GU10    7W    Warm White    38    170
14510    GU10    7W    Warm White    60    170
14520    GU10    7W    Day Light    38    250
14525    GU10    7W    Day Light    60    250
14535    GU10    7W    Warm White    72    280
14540    GU10    7W    Warm White    120    280
14550    GU10    7W    Day Light    72    350
14555    GU10    7W    Day Light    120    350
14560    GU10    7W    Warm White    60    355
14565    GU10    7W    Warm White    120    355
14575    GU10    7W    Day Light    60    475
14570    GU10    7W    Day Light    120    475
14991    GU10    7W    Warm White    25    420
14992    GU10    7W    Warm White    45    420
14993    GU10    7W    Day Light    25    520
14994    GU10    7W    Day Light    45    520

Ken


 

                                                                                                                                 

[roscoe]

eeekk,

£25 a bulb 

They look nice but at that price - I'm out !

[Tigger]

Can anyone provide Luminence levels for 'conventional' lamps (tungsten, halogen, CFL etc) so we can work out how realistic a 7w LED GU10 would be compared to a 50w halogen?

[wyleu]

Define compared.

[Stuart]

from phillips

240V 50W GU10 25° will produce about 1000 - Color Temperature 2800 K

12V 50W 24° dichroic will produce about 2700 - Color Temperature 4100 K

Stuart

[dhaslam]

I have  11 watt  GU10 replacements,   from CPC, output is 528 LF.   50 watt halogen versions have about twice the output but visually seem a lot brighter.    When the original  halogen bulbs were in the fittings the  two rooms  involved seemed a lot brighter but  I don't use the overhead lights much anyway.   

The 7 watt ones with similar output would  save about 32kWh over an 8000 year life.  .   
       

[desperate]

Wow 8000 years...........they've got those lamps sussed

Dsep

[dhaslam]

Sign of old age I'm afraid mixing up hours and years,  applying for pension next week.   Well they are used for about an hour per week   so a mere 160 years.   

[Eleanor]

Dsep, you can be Accuracy Monitor  

[wookey]

No lumens/Watt figures on those bulbs that I can see. Go and find someone who'll tell you the efficiency of what they are selling.

(And buy strips, not bulbs - much better engineering - see threads passim)

[Stuart]

And make it T5 strips with electronic control gear not them massive T8's

[LightPlanet]

Hello all - I noticed the link to our site above. I don't want to spam or promote, but more than happy to answer any general / technical queries regarding LED white lighting either on the open forum or privately.

[desperate]

Eleanor,

Thit soudns lyke mi ideel jawb  but onley if the celerey is moor that 2CP/Hr*


Dsep

*Cow pies*

[brackwell]

Light Planet,
I am still waiting for my reply from Thursday ( email with don ) asking for a comparison in lumens between lcd,cfl and halogen.  I guess your struggling with this like everybody else on this forum.

Ken

[wyleu]

Defined latency you pay for.