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Bastien

Lighting: Simplicty Vs. Complexity

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Bastien    22

I'm torn.

 

Building a 70L x 40D x 80H and I'm debating my lighting options. I'm usually all for DIY and home-made kits, but the jungle dawn LEDs seem to be working out really well for people and you can't compete with that price (while sticking to LEDs).

 

I have two options:

a ) a DIY set-up of about 60-80W, similar colour rendition and inclusion of deep red and blue wavelengths for plant growth, a couple UV-As (for aesthetic purposes), tailored to exactly the size of my viv, with a controller to simulate dawn/dusk/night (Coralux Storm for the curious) and fine tune the colour balance and light levels. All powered at a level that would not require fans (so silent). Probably around 250 quid.

 

b ) 3 x 22W jungle dawns, or 1 for flooding and a 40W spotlight. Good light, proven technology, works well with plants, but no customisation and fine tuning. Probably around 150 quid.

 

The question I have for you is, do you wish you had more flexibility than just on/off with your lights (for those who don't) or do you find too much customisation is just gimmicky and ends up unused (for those who have the flexibility) ?

Is there any benefit (proven or anecdotal) to having gradual light transitions for frog boldness?

 

Basically, how can I justify spending an extra 100 quid to my SO?

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jaize    176

Hiya Bastien,

 

What did you decide in the end? I am redoing a viv of about the same size and was looking for some light penetration via perhaps a spotlight or similar and wondered if you had any suggestions?

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Bastien    22

Sorry about the delay replying - didn't spot the notification for ages... I did a DIY setup (http://www.poisonfrog.org/index.php/topic/1627-r-imitator-build-225l-40x70x80-pic-heavy/). I've listed the parts below.

As I only run them at 1.2A, I'm able to get by with only passive cooling even in the summer so I'm not reliant on a fan never failing. The light was too much. Since, I've used the pots to reduce the light even further, probably running each of them at 800mA so a likely 10k lumen (I think) for a 40x70cm footprint and 80 high. 

 

I've just finished building a 40x40 by 70 high about two hours ago and going to go with the same setup. Smaller heatsink, but same LED and drivers. The power supply listed below can power several vivs so the whole set up is made to be scaleable. Feel free to ping me for further details but send an MP as well as I don't get the post notifications.

 

 

 

 

Bought all the parts from digikey:

 

 

Quantity

Part Number

Description

Unit Price

Extended Price

2

BXRC-40E10K0-L-23 
BXRC-40E10K0-L-23

LED ARRAY 10000LM NEU WHITE COB

18.49000

£36.98

2

RCD-48-1.20/M 
RCD-48-1.20/M

LED SUPP CC BUCK 2-56V 1.2A 7DIP

16.78000

£33.56

1

V2010-ND 
8015-1

PC BOARD FR4 1-SIDE PPH 4.0X4.0

4.95000

£4.95

1

PMT-48V150W1AA 
PMT-48V150W1AA

AC/DC CONVERTER 48V 150W

18.97000

£18.97

4

PTA4543-2010CIB103 
PTA4543-2010CIB103

POT SLIDE 10K OHM .25W 45MM

0.92000

£3.68

1

T1253-5-ND 
30-00341

CBL 1COND 22AWG SHLD BLK 5M

7.28000

£7.28

1

T1254-5-ND 
30-00342

CBL 1COND 22AWG SHLD WHT 5M

7.28000

£7.28

1

926-1549-ND 
A15371-02

TPCM 583 9" X 9"

8.91000

£8.91

1

SHHD001A3B41Z 
SHHD001A3B41Z

DC/DC CONVERTER 15W 12V 1.3A

12.65000

£12.65

     

Subtotal

£134.26

 

And:

1

510-6M 
510-6M

HEATSINK FOR PWR MOD/IGBT/RELAY

44.69000

£44.69

2

3110SB-04W-B20-E00 
3110SB-04W-B20-E00

FAN AXIAL 80X25MM 12VDC WIRE

6.48000

£12.96

     

Subtotal

£57.65

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