op:op:op:

 

i like this ALOT

 

As for battery life----if they are 27 watt lights----
27 watts X 10 = 270 watts
270 watts / 12 volts = 22.5 amps

Using [2] 80 AH batteries in parallel----2 X 80 AH = 160 AH
figuring 100% discharge[70-80% is more realistic]
160 AH / 22.5 amps = 7.1 hrs @ 100% discharge

 

Im running l.e.d, old flood lights and changed the bulbs to l.e.d bulbs and but shine metal behind them
cheap, work great, and last long on a battery!

 

All i know is they are BRITE!! I will try to get a clamp meter from work to find out exactly what they are pulling. Here they are at night.

 

Here is one off the boat.The ally you see is 40 feet away.

 

Those look good KSK,let us know how they fish!

 

Dam they look good I want some.

 

Dang Justin those look great. I really need to see these on the water soon so I can get some on my boat.

 

If you like MH's you will like these.

 

If the manuf specs are right and If your using 24 volt you have 80 AH of capacity. 80/6.1=13.1 hours, and if you want your batteries to last, they should never be drained 100%, 60-80% tops so 7-9 hours. This is not figuring in Peukert's law which will likely drop it to 6-7 hours. Which is still really good performance, and LEDs are still in infancy.

 

If your using 24 volt you have 80 AH of capacity. 80/6.1=13.1 hours, and if you want your batteries to last, they should never be drained 100%, 60-80% tops so 7-9 hours. This is not figuring in Peukert's law which will likely drop it to 6-7 hours. Which is still really good performance, and LEDs are still in infancy.

All good but in order to get the .61 amp @ 24 volts you have to completely disregard Ohm's law. A 27 watt light on 24 volts would draw 1.125 amps without factoring in current lost powering the led driver.

 

Here are some that are close to what has been posted. $117 for 2 of them and Free Shipping.

Yes it's a little more, but I don't believe you need to do all the account setting up stuff. They come from China. Have a 1yr warranty.

I wonder how long it actually takes to receive them? Also I wonder how good they "Really" are. I have a LED cargo light /3rd brake light in my truck from LMC company. After 4yrs half the LED's do not light and the Chrome on the plastic has turned Black.

Ebay # 310321516837

http://cgi.ebay.com/ebaymotors/2pcs...tem48409a9125QQitemZ310321516837QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

 

China made stuff is notorious for having spec wrong, which leads back to why Lumens to lumens is not necessarily accurate.

 

Could be
I dont think they give a lot of thought to accuracy but focus on moving "units"
Ain't no doubt those little lights are bright

 

Not doubting that the lights are bright since they look good. Just saying that something is very wrong with the specs. It's good to see LED's getting brighter and cheaper though. I would try them if I wasn't running converters for my troller and need the genny for them.

 

In all seriousness, you must remember that LEDs do not run on the full 12/24vdc, a white LED uses about 3.6v and uses about 30 mA of current, so values in calculation are not the same as a line voltage system, and there are quite a few more steps.

 

That's what the driver does and loses some electricity in the process. A true 27 watt LED light will use slightly more than 27 watts total input including the driver---never 16 watts as spec'ed on these. Look at the specs on some of the LED's from the major companies here---a 56 watt LED light normally uses around 66 watts total input from the power supply. Possibly they are using [9] 3 watt led's-27 watts- and only driving them to 16 watts?

 

could u run these with a 36v troller setup without adding 2 seperate batteries? building a new rig and would like to try them if the price is right!

 

amp them out, then youll know for sure! you got a amp probe?

 

If I had one of the lights here you would know shortly what it takes to run it and what wattage the led's are running at for sure.

 

They work and they put out some crazy amounts of light. Who really cares about all the numbers. Heck, I would use a bon fire on the front of my boat if it put off enough light.

 

you ever see a battery explode? not fun especially when its next to you!

 

O I know OBG, just tryin to lighten the mood. I have checked out Kskillers lights and all the specs and did my own research on the lights too. I am going to use the LED lights myself. When I use the lights there will be enough batteries to push the lights and safely.

 

If they are fairly bright and you can run 10 of them all night on 4 batteries or less they should work well for bowfishing.

 

So these aren't the same ones listed here earlier? I thought they ran on 120V.

I personally would still run a generator since I run a fan. But the genny would still be loafing compared to running the halos.

 

NO, these are a 12/24 volt light

 

As soon as its quits raining here i will get you guys an exact number. I'm not totally agreeing with the china specs either but if they will run all night on a couple batteries then i'm all for it.

 

Ok, here are the hard numbers straight off the trusty volt meter. At 12.1 volts they are drawing 1.78amps each. At 24.2 volts they are pulling 0.90 amps each. So that means with my 2 batteries rated at 85 amp hours each(according to interstate) i have 170 amp hours of battery life fully charged and i can run my 10 lights for 9.44 hours and still have 50% battery life left or 11.4 hours and 40% life left. This is on small 24 series batteries also so the bigger the batteries you use the longer you can run. I can live with that. Like OBG once, said never trust a factory number and always put a meter on them and know for sure just so you don't do any damage to your lights or batteries.

 

Now the figures make sense.
On the running time calculations it would be half of what you figured since 2 12 volt 85AH batteries in series[24 volts] would give you 85AH @ 24 volts more or less.

 

you da man killer! i can tell im going to learn alot on this site! im glad i was refered here!

 

So about 21 watts actual.
Are you running 24v or 12v, not that it really changes much.
I get 9.5 hours for 100% discharge and 5.7 hours with 60% discharge, and in reality probably about 10% less as batteries are rated by drawing 1 amp, when that is increase as is here, the battery looses efficiency.
I still think its great and will be using LEDs.
Do you use these batteries for a troller too?

 

So KSK where do I get these?