LED

02/01/13 01:17:34

2448 × 3264

2.3 MB

Extension driver. This one can do 350ma, 700mA constant current, 12V, or 24V constant voltage, set with dip switches. Useful versatility. No FM radio hash. Good efficiency. €20.

IMG_5433.JPG

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F8

02/01/13 01:16:29

3264 × 2448

1.9 MB

The garage driver unit. Only €10 this one but only 80% efficient and some FM radio hash.

IMG_5431.JPG

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F8

02/01/13 01:16:18

3264 × 2448

2.1 MB

The same luminaire when off.

IMG_5430.JPG

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F2.8

02/01/13 01:16:11

3264 × 2448

2.0 MB

My first wooklight. This pic gives a good idea of what it looks like in use. This one has two rebels in it (glued directly on ceramic bases, not stars)

IMG_5429.JPG

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F2.8

02/01/13 01:15:45

2448 × 3264

2.2 MB

Offset view shows the front scrylic and back aluminium plates.

IMG_5428.JPG

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F2.8

02/01/13 01:15:39

2448 × 3264

2.0 MB

Vaulted ceiling wooklight when off. You can see the star up close, but not from afar. The white ones are better in this regard. The curved line in the acrylic is because I reused a piece half-cut for something else - only noticeable up close.

IMG_5427.JPG

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F2.8

02/01/13 01:14:49

3264 × 2448

1.6 MB

Wooklight fitted in vaulted ceiling (before cable clipping). The frosted plate reduces the dazzle (more than this pic shows)

IMG_5426.JPG

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F2.8

02/01/13 01:14:03

3264 × 2448

1.8 MB

The same pic with camera set to 'custom white balance'. Quite blueish. These cold white LEDs are quite daylight-coloured - i.e. relatively blue. I like it, but this pic looks a bit odd. The reality is somewhere between the two pics.

IMG_5424.JPG

Manual

F2.8

02/01/13 01:12:48

3264 × 2448

2.0 MB

Hard to take photos of lighting results. This is what the camera shows without flash on auto colour balance. The luminaire is above the middle of this pic (see refelction off back wall (disused door actually - hence the gloss paint)

IMG_5423.JPG

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F2.8

02/01/13 01:11:50

3264 × 2448

1.5 MB

Wooklight without frontplate up close. They are quite bright!

IMG_5422.JPG

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F2.8

02/01/13 01:11:37

2448 × 3264

1.8 MB

Wooklight (temporarily) fitted over kitchen sink. This is without frosted front-plate, so somewhat dazzling.

IMG_5421.JPG

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F2.8

02/01/13 01:11:30

2448 × 3264

1.8 MB

6W/450lm commercial striplight in kitchen. This cost €20 and is resin-sealed so waterproof. Temporarily mounted to get position right.

IMG_5420.JPG

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F8

07/12/12 10:44:55

3264 × 2448

2.7 MB

The one on the left are completed apart from the mounting holes. M3 threaded holes to hole the star down. M3 clearance for the standoff posts. The RH plates have the wire passthorugh holes missing. 8 holes per completed plate in total.

IMG_5364.JPG

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F2.8

11/11/12 17:33:21

3264 × 2448

1.3 MB

IMG_5336.JPG

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F8

11/11/12 17:33:07

3264 × 2448

2.6 MB

Aluminium blank backplates

IMG_5335.JPG

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F8

11/11/12 17:32:42

3264 × 2448

2.2 MB

Collection of star LEDs. Sadly I've forgotten which are which. There are some Peoul P4s and Lueon Rebels in here. Most are better than 90lm/W

IMG_5334.JPG

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F2.8

15/01/12 15:18:46

3264 × 2448

1.4 MB

You can see the plates, LED, wiring, holes, stnadoff and cover here. It's all very simple, but effective. And very efficient. These LEDs are 109lm/W nominal. I'm running then at 700mA rather than 350 so that's more like 100lm/W, and you lose some in the diffuser too. The worst bit of the system is the Driver unit which is just ">60%". It's this one: http://www.leds.de/en/Accessories/Power-supplies/Constant-current-supply-700mA-IP20.html which has a nice form factor and is only 13€. Better supplies exist.

IMG_4557.JPG

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F8

15/01/12 15:17:50

3264 × 2448

1.6 MB

The bare LEDs are very uncomfortable to look at, so I put a diffuser over the top. This is a clear acrylic sheet rubbed with a bit of sandpaper, but no doubt it can be bought pre-distressed. Mounted on 6mm standoffs. First thing I learned - don't put the mounts too close to the LED - it's very obvious when lit up.

This lamp should be using 7.5W and putting out 750lumens. But maybe using 11.5W from the mains due to mediocre supply efficiency. Not measured yet.

The colour and spread is excellent.

IMG_4554.JPG

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F2.8

15/01/12 15:17:03

3264 × 2448

1.9 MB

LED roomlight. 3 Cree XP-G LEDs glued to 3mm aluminium sheet with thermal epoxy. The Sheet is approx 200x50mm to provide sufficient heat-sinking area. It barely gets warm (30C?) after a couple of hours.

IMG_4553.JPG

Auto

F2.8

02/01/13 01:17:34 2448 × 3264 2.3 MB Extension driver. This one can do 350ma, 700mA constant current, 12V, or 24V constant voltage, set with dip switches. Useful versatility. No FM radio hash. Good efficiency. €20. IMG_5433.JPG Auto F8	02/01/13 01:16:29 3264 × 2448 1.9 MB The garage driver unit. Only €10 this one but only 80% efficient and some FM radio hash. IMG_5431.JPG Auto F8	02/01/13 01:16:18 3264 × 2448 2.1 MB The same luminaire when off. IMG_5430.JPG Auto F2.8	02/01/13 01:16:11 3264 × 2448 2.0 MB My first wooklight. This pic gives a good idea of what it looks like in use. This one has two rebels in it (glued directly on ceramic bases, not stars) IMG_5429.JPG Auto F2.8
02/01/13 01:15:45 2448 × 3264 2.2 MB Offset view shows the front scrylic and back aluminium plates. IMG_5428.JPG Auto F2.8	02/01/13 01:15:39 2448 × 3264 2.0 MB Vaulted ceiling wooklight when off. You can see the star up close, but not from afar. The white ones are better in this regard. The curved line in the acrylic is because I reused a piece half-cut for something else - only noticeable up close. IMG_5427.JPG Auto F2.8	02/01/13 01:14:49 3264 × 2448 1.6 MB Wooklight fitted in vaulted ceiling (before cable clipping). The frosted plate reduces the dazzle (more than this pic shows) IMG_5426.JPG Auto F2.8	02/01/13 01:14:03 3264 × 2448 1.8 MB The same pic with camera set to 'custom white balance'. Quite blueish. These cold white LEDs are quite daylight-coloured - i.e. relatively blue. I like it, but this pic looks a bit odd. The reality is somewhere between the two pics. IMG_5424.JPG Manual F2.8
02/01/13 01:12:48 3264 × 2448 2.0 MB Hard to take photos of lighting results. This is what the camera shows without flash on auto colour balance. The luminaire is above the middle of this pic (see refelction off back wall (disused door actually - hence the gloss paint) IMG_5423.JPG Auto F2.8	02/01/13 01:11:50 3264 × 2448 1.5 MB Wooklight without frontplate up close. They are quite bright! IMG_5422.JPG Auto F2.8	02/01/13 01:11:37 2448 × 3264 1.8 MB Wooklight (temporarily) fitted over kitchen sink. This is without frosted front-plate, so somewhat dazzling. IMG_5421.JPG Auto F2.8	02/01/13 01:11:30 2448 × 3264 1.8 MB 6W/450lm commercial striplight in kitchen. This cost €20 and is resin-sealed so waterproof. Temporarily mounted to get position right. IMG_5420.JPG Auto F8
07/12/12 10:44:55 3264 × 2448 2.7 MB The one on the left are completed apart from the mounting holes. M3 threaded holes to hole the star down. M3 clearance for the standoff posts. The RH plates have the wire passthorugh holes missing. 8 holes per completed plate in total. IMG_5364.JPG Auto F2.8	11/11/12 17:33:21 3264 × 2448 1.3 MB IMG_5336.JPG Auto F8	11/11/12 17:33:07 3264 × 2448 2.6 MB Aluminium blank backplates IMG_5335.JPG Auto F8	11/11/12 17:32:42 3264 × 2448 2.2 MB Collection of star LEDs. Sadly I've forgotten which are which. There are some Peoul P4s and Lueon Rebels in here. Most are better than 90lm/W IMG_5334.JPG Auto F2.8
15/01/12 15:18:46 3264 × 2448 1.4 MB You can see the plates, LED, wiring, holes, stnadoff and cover here. It's all very simple, but effective. And very efficient. These LEDs are 109lm/W nominal. I'm running then at 700mA rather than 350 so that's more like 100lm/W, and you lose some in the diffuser too. The worst bit of the system is the Driver unit which is just ">60%". It's this one: http://www.leds.de/en/Accessories/Power-supplies/Constant-current-supply-700mA-IP20.html which has a nice form factor and is only 13€. Better supplies exist. IMG_4557.JPG Auto F8	15/01/12 15:17:50 3264 × 2448 1.6 MB The bare LEDs are very uncomfortable to look at, so I put a diffuser over the top. This is a clear acrylic sheet rubbed with a bit of sandpaper, but no doubt it can be bought pre-distressed. Mounted on 6mm standoffs. First thing I learned - don't put the mounts too close to the LED - it's very obvious when lit up. This lamp should be using 7.5W and putting out 750lumens. But maybe using 11.5W from the mains due to mediocre supply efficiency. Not measured yet. The colour and spread is excellent. IMG_4554.JPG Auto F2.8	15/01/12 15:17:03 3264 × 2448 1.9 MB LED roomlight. 3 Cree XP-G LEDs glued to 3mm aluminium sheet with thermal epoxy. The Sheet is approx 200x50mm to provide sufficient heat-sinking area. It barely gets warm (30C?) after a couple of hours. IMG_4553.JPG Auto F2.8