i am going to be doing my own DIY LED's from now on, as i bought mine from a previous Mod and see how easy it was for him and for myself to do as i have the skill required to make them.
to start of you need LED's now what is the footprint of your tank? and depending on how much light you want you can go with 3W or 5W LED's now i have only delt with 3W led's so i can not tell you what heatsink work for 5w. i shall give a guided list of what you need below, GUIDE and not exactly what you need to buy.
WARNING ELECTRIC SHOCK POSIBLE!!!!!
BEFORE DOING ANY WORK! SWITCH OF THE POWER AND UNPLUG YOUR LED'S
i am just giving you an idea, please do research on this you are required to know how to use a soldering ion for this and know electronics
now this is a section i am not familiar with, i have yet to calculate what the Deg angle of my LED's are but i am guessing they are around 60 Deg, this is an important one, this will determine how many LEDs you need or and how much light coverage you get per LED over the height of your tank, for example if you have 10Deg at say 50cm above the tank you may need 40LED's to get full coverage where as with 60Deg you will only need 10 LED's at that same height, this is again an example not Fact, now on my 330L tank which had a footprint of 54" by 20" i had 30 White LED's on that look at my journal to see the LEDs them selfs and the difference they made to the tank i had 2 T5's before them http/www.fishforums.net/index.php?/topic/381283-330l-tank-journal/
with my new 88L which is 30"x12" but has 15 white LED's my 88L has more power and is more brighter than my 330L because i have more LEDs close together to get more power n more light. but i kept the same Lens from the 330L tank as in my 88L again here is my 88L journal you can see how the LEDs are made up in these pictures under the hood so to speak
Now depending on what and how many LED's you want depends on what Driver u need. if you are doing for two colours like my tanks White and Blue you need Two Drivers, DO NOT RUN BLUE AND WHITE LEDS
from the same Driver, now my old tank, 330L with a footprint of,
now i would not go with a dimmable i have no experience how the LEDS react to being dimmed so i can't say on those, but the normal waterproof ones at various Wattage are fine, be careful if you have 19W of LED's DONT
get the 18W driver thinking its only 1w, u must get the 30W driver. you can have less but never more.
the LED's will all need to be in series and you must take into account the Current and Voltage of the LED's along with the Wattage, also you will need some wire from marlins get the grade you require speaking to someone in store should help you this depends on current and voltage, but current and voltage are low for LED's so should be to much of an issue, and like i said this does require soldering and a little but of skill required on that part if you know how to do that its a piece of cake
i don't have my 88L tank to get more details on as its in storage but i will be getting this tank/cabinet this coming monday so i can get more details on stuff if you need to.
i hope you and anyone else find this useful any more questions please ask or PM me, if i have made any errors or mistakes PLEASE someone tell me
Securing the LED to the LED heatsinks i would recommend watching this
Found this on soldering may help someone