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Help please, DIY pwm led controller

Nice one. You should just order 1 and see what like, can always add the second one afterwards. There doesn't seem to be any saving on the twin pack annoyingly, the only difference being a twin power brick!

My rail arrived and I've chopped it in 2, so I'll get it installed when I get home later!
 
Swell has the best price for a single with free next day delivery. I have sent Clive a message to see what he reckons as he knows so much. Are you running pressurised co2, as I'm not and that was one of my concerns about running two strips that I wouldn't be able to keep up with the demands of the plants even with a dimmer. I like the mms mounting system and the T5 adaptors but unfortunately I don't have space for them.
 
I'm not runnning CO2 at the moment, the tank still isn't running as I'm waiting for everything to trickle in prior to planting, and I'm running my filter in on my old tank to get it matured prior to running a new tank.

I plan to get a CO2 system on the go at some point, my partner's uncle owns a fabrication shop so I should be able to get a bottle with relative ease!

This Trigon is my first proper attempt at a full on planted tank, I have my EI ferts ready to go but I suspect you'll be on the money with regards to CO2 demands with that much light! If I get the tank up and running prior to my CO2 system then I'll see how the plants react and drop down to a single unit / dim even further if need be!
 
After further deliberation and discussions with Clive and Ian I have decided to get the twin, as it allows more future flexibility. The code you gave me made it £10 cheaper than last time!! £125 plus free next day delivery - bargain.
I have finished making the new lid out of some old soffit board so I just need to wait for the connectors to arrive so I can make the rails for the lights. Once I have seen the connectors on the lights I can buy the dimmer switches if they will fit. What oem controller did your buy?
 
Nice one, glad it helped! I was chuffed with such a good deal on them too.

I got a twin-channel off of eBay for a reasonable price. Set it up last night and dimmed the beams to 50% which I think is more than enough for a non-CO2 Tank at the moment. My tank still isn't set up as I'm awaiting to get a bit of feature wood so I can get the whole thing planted up! Need to pull my finger out and get something ordered!
 
Yeah they are very nice lights. That dimmer on eBay only has an output voltage of 12v, but the power supply has an output voltage if 19.5v so I don't think they will be suitable. Dad is going to investigate. The controller you bought was it a tmc one, or a generic one? Was there more available? In the meantime I will just reduce the time the lights are on for / run one strip.
 
Ah that's a bummer, they'd have been a nice cheap alternative!

I got a TMC unit, luckily it was advertised as 'aquarium lighting' so I only ended up bidding against 1 person and nabbed it for £45. There seems to be a couple units on all the time and they seem to end around £45-55!
 
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