LED-665/666 Oval LED Light

LED-665/666 is a 4x6 style Oval LED work light. 6 CREE LED's at 10 watt each, 4100 lumens, 5000k, and only 3.6 amp use. Select the light beam type, then select the bracket you need for your application. Comes with a 7" adapter cable that fits 9005 or H11 connectors. You can find more adapter cables at the bottom of this page.
SKU: LED-666 series
  • All prices USD. If importing into Canada there will be brokerage cost collected by UPS. Check the "Canada/World" link on the homepage for more info.
Full Description

LED-665/666 Oval Series 


The LED-666 Oval series of lights are all 60-watt CREE LED lights. 4100 lumen at 5000k. This is a very powerful light that will work for many applications. 

The light can be ordered as a side mount or a bottom mount light, 25, 40, 60 or 80-degree beam. Fits many tractors and combines that use a rectangular 4x6 style light. 

The 1" Ball mount for some JD tractors, and the new "Solid" mount for mounting into existing "U" clamps on some tractors and combines can be ordered below. (extra)

The "Solid mount" is a 1 3/8" wide mount that will fit into OEM "U" clamps on many tractors and combines. 

The 1" ball mount is for the JD 7000 and 8000 series tractors using the ball mount brackets.

Integrated Deutsch connector, and comes with an adaptor cable for 880 series and 9005 bulb connectors. Adaptor cables for other connectors can be ordered on the bottom of the page if needed, or by following this link: adapter cables



  • Watt : 60 watt - 6 x 10 watt CREE Xlamp XM-L2 LED's
  • Size : 6 3/8 x 3 7/8 x 3.1 inch. (without mounting bracket)
  • Power use : 43 watt
  • Lumen : 4800 raw, 4100 Effective
  • Volt : 10-30 volt
  • IP : 68
  • Kelvin color : 5000-5500k
  • Life time : >30000 hours
  • Warranty : 3 years.

 LED 666, LED-666, Oval, LED666, LED665, LED-665, 86044306 Buhler Versatile, LL0402, LL0463, LL0400, LL0401, LL0465

LED-665/666 Oval LED Light - QrCodeImage
Existing reviews
LED-666 Oval 40degree on Challenger 655B
Bought these with the “Solid Mount” bracket and added washers to mount on the OEM bracket per Kenny’s recommendation. Worked excellent has the OEM look and great light output. Used these on the upper cab rear lights.
Evan Watson | 7/10/2019 6:30 PM
Was this review helpful? Yes No (5/0)
LED -666 oval 60 degree on John Deere 4066R
Bought these for my 4066R , which Kenny recommended.   Everything  is plug and play.  They put the factory lights to shame.  Thank you Kenny
brian rector | 12/30/2019 5:06 PM
Was this review helpful? Yes No (1/0)
Installed the LED-666 on the rear fenders - night and day difference in light output, very easy to install using the "Solid Mount" bracket.
Richard Yaggie | 1/8/2020 9:29 AM
Was this review helpful? Yes No (3/0)
LED-666 on a JD 3046R
I did the installation this morning and am really happy with the upgrade!  They are a huge upgrade over OEM.  Not only brighter, but much more effective spill pattern.

A few points for your future reference:

1.  The 3046R uses the smaller of the two connectors you sent

2.  The mounts fit perfectly into the OEM brackets, so the u-brackets are not needed for installation on tractors that already have factory lights.

3.  Installation time is about 10 min per light.  Maybe 5 at the bench to set up the mount and 5 on the tractor to swap out.  Everything lined up perfectly!

Thanks for your help.
Michael Yapel | 1/17/2020 8:23 AM
Was this review helpful? Yes No (1/1)
LED-666 with Side mount on 3046R
Outstanding replacements.  So many times better than the factory original and they look factory themselves. These lights are heavy duty built (they are heavy compared to the cheap plastic from JD).  Direct fit with the side mount kit. With factory installed lights, you don’t need most of the pieces in the kit.  I got 80* as that’s what was available and they work well - better than expected.  Only suggestion, buy the amber’s so you can replace them at the same time.
Guest | 5/29/2021 2:53 PM
Was this review helpful? Yes No (0/0)
5.0 5
Product tags
Use On Below Models (Click to expand)
Case IH +
Challenger +
Gehl +
John Deere +
Massey Ferguson +
SpraCoupe +
Versatile +
Customers who bought this item also bought

Solid Bottom Mount Bracket for LED-660/666

Solid Bottom Mount Bracket LED-660 & 666, for high vibration and JD 20/30 series tractors and 60/70 /"S" series combines, and many others using a 1 3/8" "U" clamp.

Bottom Mount Bracket for LED-660/666

Bottom Mount Bracket for LED-550 & 660 / 666

Side Mount Bracket for LED-660/666

Side Mount Bracket for LED-660 & 666