I'll be stepping down from 12V to 3.3V. Would a heat sink be required at a 2 amp draw?
619051
You should be fine. Some heat will be generated, but there shouldnt be enough for the need of heatsink, though it never hurt anything to run a little cooler. I would say if you are only dropping from 12v you should be able to go almost to 4amp @ 3.3V before you really need to worry about cooling.
619052
I dropped down from 12V to 7.5V without a heat sink. Not sure about a bigger drop.
1310047
Get a 12vDC adapter. You could use and old adapter from something else, as long as it has enough amps.I do NOT know how many amps this uses, but any adapter 3 amp or more should be fine.Volts = The voltage (output) of the adapter should be 12v, or a little less (lower speed). More volts is like more "electrical pressure", this could start a fire if you had too many volts.Amps = The amps should be 3, or greater (3000ma, or greater). More amps is more available power. This is okay. A 3 amp transformer could supply up to, or under, 3 amp of power.
2281944
According to the spec sheet on the eVGA site, the min required is 350 W power with 20 A on the +12 V rail.
857989
The internal fan is very quite but not up to the task of high loads (20+ amps) for long periods. I hooked a 120mm 12v computer fan up to the terminals and just place it on top of the unit with the fan pulling air through the power supply and out the fan. I can touch the rear heat sink now when I have heavy loads, before it was way to hot. 12 volt computer fans can handle voltage from 6-15v just fine. Just a tip.
2189
thank you all for your response. I now understand what I need, at least 8 amps power supply ...enjoy your weekend!!!! :_)
2068988
You can get a heat sink, fan (12 volts), and Len's combo on eBay for $20. remember light takes 34V to operate. Do Not Hook The both them in parallel. Yes it comes with a CPU Heat sink.
565220
The strip itself needs 12volts. You can use whatever power supply as long as the output is 12 volts (3 amp) , you would need to solder on the wires to the strip.
11439
The instructions say that it draws 18 watts. So a 12V 2 amp (or higher amp rating) power supply would run it.
1507071
I dont know the true capacity, you would need to ask the manufacturer? I am currently pushing 1200amps with no heating up if that helps?
2263140
I do not see why CFM would be any different using a 3A adapter. The 3A will give more capacity power wise than the 2.6A.
1800398
See my comments of -5V: http://www.amazon.com/review/RFNW9LHMC8WKU/ref=cm_cr_rdp_permAbout -12V, It's still on pin 14 of latest ATX V2.3 standard. I guess it's still needed.
1315748
yes you will need a 12volt supply. The terminals are bare wire clamp ons so you shouldn't need any connecters. This is for single color LEDS not RGB version of LEDS.
947328
I used a variac and was able to go above in voltage by 1-3 volts. The amps were able to reach 2.88 without issue as well, the heat that is generated is concerning.
1816830
It works with my q see equipment and power supply. 12v 3 amps is on the original power supply.
316844
Yes, you'll need a large relay. This has output for a Solid State Relay. Depending on your voltage, you'll need a very large SSR and heat sink for 15Kw. Consult an electrician or a competent engineer if you're not totally confident in the entire setup.
2169090
No. You would need a dummy load for that, something that would draw a lot of current without burning up.
86243
No not enough amps on the 12 volt rail, you will need at least a 450 watt power supply with two 6 PCIe PEG connectors native. Antec VP-450 450W ATX 12V v2.3 ,Cooler Master Elite Power 460W (RS460-PSARI3-US) and SilverStone ST45SF-G 450-Watt all are great and run under $40. I normally try to go a little higher than what is recommended. If the Card asks for 450W I'll look at 550W-600W supplies.