LED Floodlights??

Anonymous-0 · Sep 7, 2012

Hey,
On a tip from someone on here, I bought some of these in AC (85-300?) volt. Just ran across the same thing (in appearance anyway) in 12 volt.
Any reason they wouldn't be as bright as the AC versions??

http://www.amazon.com/LEDwholesaler...p;sr=8-1&keywords=12+volt+led+flood+light

waltdavies · Sep 7, 2012

LED lights run on 12 volt DC they need to to be changed over
when run on AC.
WALT

Anonymous-0 · Sep 7, 2012

(quoted from post at 09:01:30 09/07/12) LED lights run on 12 volt DC they need to to be changed over
when run on AC.
WALT

I've already got several of these...

http://www.amazon.com/LEDwholesaler...-Floodlight/dp/B004DDQK0O/ref=pd_sim_sbs_hi_1

Think it's a simple fix to use them on 12 volt then???

big fred · Sep 7, 2012

LED lights can run off any voltage greater than the forward voltage of the LED, which is probably around 3.3 VDC for white LEDs. Range is under 2VDC for some infrared, up to about 4VDC for some of the shorter wavelength blue LEDs. White LEDs aren't really white (broad spectrum LED), but instead are a blue LED that's been doped with phosphors that re-radiate yellow, red, green, etc. The re-radiated light from those phosphors combines with the blue from the LED to approximate a broad spectrum white light as seen by our eyes.

big fred · Sep 7, 2012

Dave, your best bet would be to contact the manufacturer and ask. I would guess they are the same lamp and just use a different power supply section. It might be as simple as opening up the AC version and hooking your 12VDC across the output of the power supply, but it's probably not going to be that easy. I'm guessing either the AC-input power supply or the 12VDC-input power supply sections will both have a 3.3 to 3.5VDC output to power the LEDs. In that case, you'd need to either get the replacement power supply section or replace the entire light.

Indiana Ken · Sep 7, 2012

Per your link the 12 Volt LED was listed as 10 watt. I asuume that is 10 watts comsumption which would be roughly equal to the light output of a 60 to 70 watt incandescent bulb consuming 60 to 70 watts.

The same LED lamp rated at 10 watts, only configured to run on 85 to 300 volts AC should be similar in light output. All LEDs have some sort of electronics/resistor to reduce the voltage and control the current across the LEDs.

Anonymous-0 · Sep 8, 2012

OK.... I'm over it... Just thinkin about a worklight or two on the tractor (bright little suckers).... If I decide to, I'll just order the actual 12 volt ones or ust the ones I have and plug them into the inverter on the tractor.

Thanks.

LED Floodlights??

Anonymous-0

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waltdavies

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big fred

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big fred

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Indiana Ken

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