Brisch
2013-03-22 10:05:04
- #1
Hello Renovierer2013.
Double battens are definitely the best decision!
I haven't used 6.5 W LEDs yet, I will use them (I already have them at home)
The 6.5 W LEDs I have correspond to 50W halogen spotlights (this is not the case for all).
You just have to spend a little more and pay attention to quality.
Toshiba and Philips are very good (Attention: do not use Philips with active cooling, you can hear them, especially with low ceiling height and when used in the bathroom!), in a direct light comparison I liked the Philips LEDs better because the light appears somewhat more natural and also brighter, but that's subjective. Best to check them out in a lamp studio!!!
My LEDs are these: Philips MASTER LED Spot NV 6.5W 827 GU5.3 36G 20
The beam angle should not be smaller than 35 degrees, otherwise it looks like flashlights.
827 is the light color. 2700K color temperature. There are also some with 3000K (but that tends more towards cool white instead of warm white), but in my opinion this is not really necessary, you hardly notice the difference.
Important is: "Warm white"! Anything else looks like a laboratory!
The luminous flux of these is: 380 lumens per LED spot
I also received the following info which I will adapt here to our calculation:
For living rooms about 100 lux are recommended. Plus quite some reserve for losses etc.
So ... the 380L of the LEDs (see above) x 4 (that's how many I have in the bathroom) / 14 m² (floor area of the bathroom) = 108.57!
Theoretically, if the spots would perfectly and evenly illuminate the floor area of the room.
As said, GOOD LEDs do not produce worse light than halogen spotlights.
Advantages:
- lower wattage compared to halogen
- longer lifespan
- less heat generation (especially at the shaft)
Disadvantage:
- initially about 10-15 times as expensive as comparable halogen spotlights (but pays off quite quickly through electricity savings)
If you compare e.g. 4 x 6.5W LEDs (=26W) against 4 x 50W halogen (200W) ... I don't have to think long ... especially since in the old bathroom with 6 halogen spots we had to replace 2 halogen spotlights once a month because they constantly break.
Hope this info helps you
PS: Make sure that the arrangement of the ceiling spots is not systematic / symmetrical (so not like in your picture in a row, 4 corners etc.). Irregular is recommended in my opinion (I was able to see both variants installed).
PPS: For your 12,x m², 3-4 of the above spots are enough.
PPPS: For these spots (since GU5.3) you need transformers. 30W (31€), 35W (24€) or 60W (28€) you can get e.g. at Conrad for a good price. You will also need 175 cable.
PPPPS: GU10 I would generally not use in your case. Although it saves the transformer, it usually requires at least 10 cm installation depth.
Puuuuuuh done
Double battens are definitely the best decision!
I haven't used 6.5 W LEDs yet, I will use them (I already have them at home)
The 6.5 W LEDs I have correspond to 50W halogen spotlights (this is not the case for all).
You just have to spend a little more and pay attention to quality.
Toshiba and Philips are very good (Attention: do not use Philips with active cooling, you can hear them, especially with low ceiling height and when used in the bathroom!), in a direct light comparison I liked the Philips LEDs better because the light appears somewhat more natural and also brighter, but that's subjective. Best to check them out in a lamp studio!!!
My LEDs are these: Philips MASTER LED Spot NV 6.5W 827 GU5.3 36G 20
The beam angle should not be smaller than 35 degrees, otherwise it looks like flashlights.
827 is the light color. 2700K color temperature. There are also some with 3000K (but that tends more towards cool white instead of warm white), but in my opinion this is not really necessary, you hardly notice the difference.
Important is: "Warm white"! Anything else looks like a laboratory!
The luminous flux of these is: 380 lumens per LED spot
I also received the following info which I will adapt here to our calculation:
For living rooms about 100 lux are recommended. Plus quite some reserve for losses etc.
So ... the 380L of the LEDs (see above) x 4 (that's how many I have in the bathroom) / 14 m² (floor area of the bathroom) = 108.57!
Theoretically, if the spots would perfectly and evenly illuminate the floor area of the room.
As said, GOOD LEDs do not produce worse light than halogen spotlights.
Advantages:
- lower wattage compared to halogen
- longer lifespan
- less heat generation (especially at the shaft)
Disadvantage:
- initially about 10-15 times as expensive as comparable halogen spotlights (but pays off quite quickly through electricity savings)
If you compare e.g. 4 x 6.5W LEDs (=26W) against 4 x 50W halogen (200W) ... I don't have to think long ... especially since in the old bathroom with 6 halogen spots we had to replace 2 halogen spotlights once a month because they constantly break.
Hope this info helps you
PS: Make sure that the arrangement of the ceiling spots is not systematic / symmetrical (so not like in your picture in a row, 4 corners etc.). Irregular is recommended in my opinion (I was able to see both variants installed).
PPS: For your 12,x m², 3-4 of the above spots are enough.
PPPS: For these spots (since GU5.3) you need transformers. 30W (31€), 35W (24€) or 60W (28€) you can get e.g. at Conrad for a good price. You will also need 175 cable.
PPPPS: GU10 I would generally not use in your case. Although it saves the transformer, it usually requires at least 10 cm installation depth.
Puuuuuuh done