How big is the capacitor on this board? I want to power an LED light for 20-30 seconds after turning off the switch. The LED draws 24 watts at 12v
2045844
This is a delayed contact closure, not a power supply. You have to supply power for it to work.From the picture it can handle upto 10A. Your led only draws 2A.
2045845
The capacitor onboard is for the timer, not for a circuit when the timeout either opens or closes the relay. At 24 Watts and driving 2+ amps the relay could easily handle the load but it must be a separate circuit with its own power in serial with the relay. This is a timer/relay board originally for home automation running on a 12v 23A battery with whatever circuit -running on its own power if you want to do more than light an LED - connected to the relay. A much simpler approach would be to use discrete components with a power transistor drlving your 24 Watt LED.
2045846
The capacitor onboard is for the timer, not for a circuit when the timeout either opens or closes the relay. At 24 Watts and driving 2+ amps the relay could easily handle the load but it must be a separate circuit with its own power in serial with the relay.This is a timer/relay board originally for home automation running on a 12v 23A battery with whatever circuit -running on its own power if you want to do more than light an LED - connected to the relay.A much simpler approach would be to use discrete components with a power transistor drlving your 24 Watt LED.
2045847
There's no capacitor on it, it's only a delay switching board. So basically the output from the board changes from constant to a delayed after the power is switched off. So you run two sources of power to the board, one constant and one from the switch. You may need to use a relay if the amperage draw is more than the board can handle.
2154518
Should work fine!, its a 12 amp hour battery, so if the light is 1 amp (i doubt it for a LED) then theoretically you would have 12 hr.
1711831
Try these links:This one is 60 Watt:LEDwholesalers 12 Volt DC Waterpoof LED Power Suppply Driver Transformer with 3-Prong Plug, 60W, 3204This one is 360 watt but it works quite well:Singpad New Style LED Power Supply DC12V 30A Regulated Transformer Power Supply For LED Strip, 360Watt LED Power Supply Driver Transformer 120 to 12 Volt Dc Output
262765
Any standard size LED sold these days is probably going to have a max current of around 30mA. Run it at 80% of that for a good long life. Look online for data sheets to really get a handle on this.
1862578
Don't think so, I have mine on a timer 12 on 12 off. LEDs appear to be still semi on after timer goes off ,but turn completely off after 10 seconds or so. Might wanna take a closer look at your timer. Hope I helped :)
1192134
The label says 1W. I plugged one into a kill-a-watt meter and it shows .02 Amp. (20Ma). Problem is it show this regardless of the switch setting or whether the LED's are on or off.... This unis has not been plugged in so the battery may be charging. I will leave it plugged in and update this info after the battery has had time to fully charge.
11205
I have not had or used this long enough to find out. I think the LEDs current draw is low on the four D cells. Hasn't dimmed in about half hour total on time so far. I suspect it would run much longer than a light with an incandescent bulb.
1254315
I am running about 240 watts of incandescant lighting on this timer and it hasn't failed. So I suppose that since LEDs use such a small amount of electricity there should be no issue whatsoever.
774261
This uses 2watt and output light about 10 to 20 watt bulb equivalent. I am not too sure because I have not seen a 20 watt bulb. Definitely dimmer than a 40 watt bulb.
2248204
Not sure on watts, since that really doesn't matter on the 12 volt platform. I am not concerned with watts, only amp draw, as that is what the battery is supplying for. Normal 1141 BA-15 draws right around 1.6 amp hours versus these LED's which are drawing just over 250mA hours. Basically I can run one of these six hours on about the same amount of battery power as just one 1141 bulb! Or I could run six of these for one hour versus one 1141 for the same one hour on the same amp draw. Clear as mud right??
1626815
It should as long as the 12vdc supply is external, IE its from a plugged in transformer/regulator, you must use this as a supply for the timer, the output from the timer goes to your led lights.
759054
It's really hard to speak in terms of "watts" when addressing LEDs. It always comes down to lumens. I have the 24-36 Inch Marineland light and it keeps my moss balls quite healthy. This is due to the Blue light providing the specific wavelength required for vegetative growth. Rather than going forward in terms of "watts", calculate the lumens generated by the 120 watt you're told you need...then calculate the lumens generated by the lights you have and fill in the blanks with add-on modules.
697546
Ac or Dc? If it is ac you need a transformer to step it down to 12 volts. And then you have have to convert to dc.leds only work on DC
1899694
Ground is one, 20A is other, I got mine working with 12v power supply and ground, still haven't had time to supply separate 20A 12v supply to power led lighting
432075
You need around 60W at 12V, I would recommend: "Intocircuit 80W(72W / 60W Compatible) Waterproof Superior Quality Aluminum Alloy LED Power Supply Driver LED Transformer 120 to 12 Volt DC Output, 6ft Cable" , available on amazon
209273
Hi Williams castillo Is each of your LED strips is 24 watts for every 5m? Then just sum the total and as you can see the led driver is 100 watts from the power output so if you use 4 strips you will be ok (96 watts) and within the range of the driver
227669
NO! The light bar you purchased draws 240 watts. Powering the light bar with 12 volts would require the 12 volt supply and the remote switch to be able to to handle 20 amps (amps = watts/volts i.e. 240/12 = 20 amps). The remote switch rated for 6 amps WOULD NOT be able to handle to 20 amps and would likely burn out as soon as you turned it on!