5mm Blue LED Christmas Lights

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We got the blues! The beautiful blues! If you're looking for spectacular blue lights with a radiant glow, 5mm LEDs are for you. The 5mm LED is smaller than your traditional mini light yet its concave lens provides superior brightness and disperses light uniformly in all directions. Blue lights are often associated with peace and tranquility, and popular uses include blue and cool white during the holidays, or Light It Up Blue for Autism Awareness. These are the lights you want for wrapping indoor and outdoor trees, wreaths and garland.

  • 70 Blue 5mm LED lights spaced 4" apart on green wire, 24.0' total length.
  • Connect up to 45 light strings or 216 watts end to end.
  • Bulb lifespan up to 100,000 hours.
  • Patented one piece construction eliminates corrosion from moisture for longer life; bulbs are hardwired and cannot be removed
  • IP66 rated string lights, waterproof and impervious to dust, dirt and debris
  • So efficient it is ENERGY STAR rated
  • LED lights use up to 90% less energy, minimizing power needs and saving you money.
  • Bulbs are virtually unbreakable, and colors never fade, chip or crack.
  • LED bulbs remain cool to the touch.
  • If one light goes out, the rest stay lit.
  • Tighter twist wire reduces tangling for a cleaner look.
  • Indoor / Outdoor use.
  • 3 year warranty.

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Customer Rating
4.9 out of 5 based on 29 reviews
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Reviewed by Craig E.
on Monday, January 30, 2017

70 5mm Blue LED Christmas Lights, 4" Spacing

I ordered the 70 count 5mm Blue LED Christmas Lights with 4" Spacing at the end of the Christmas season to supplement my current light display for next year. I tested the lights when they arrived, and they are extremely bright with a great deep, rich blue color and the construction quality seems to be very good. The concave lens design creates a very bright light from any angle with the wide angle reflection. Order was delivered quickly and in good shape. I look forward to adding these to my display for next year.

Reviewed by Dale H.
on Monday, October 15, 2018

70 5mm LED Lights, Blue

I have seen blue lights before at Christmas and they are so incredibly dim which I could never figure out why. I never bought any but recently I went in to Lowe's and tried a string and even though they were beautiful they still had that freakishly dim look. I have purchased lights from this site before and when I saw the blue LED lights I bought a single 70 count string. When they arrived (practically overnight?), I unwrapped them, laid them on the floor in a straight line, plugged them in, and WOW, bright doesn't even begin to describe them. THIS is how blue lights should look. Fantastic!!!!!

Reviewed by Julie P.
on Saturday, June 29, 2019

70 5mm Blue LED Christmas Lights, 4" Spacing

Used these lights for my daughters room! They are really nice!

Reviewed by Mark A.
on Monday, February 20, 2017

5MM Mini Light

These are great lights. They have a very nice blue glow, very even light in all directions. Highly recommended!

Reviewed by Barbara M.
on Wednesday, June 14, 2017

70 5mm Blue LED Christmas Lights

The lights are very bright and arrived promptly.

Reviewed by Jeff D.
on Friday, January 06, 2017

5mm LED Wide Angle Blue Prelamped Light Set, Green Wire

These Lights Work Great!!!

Reviewed by WILLIAM G.
on Saturday, January 19, 2013

LED Blue Lighting

Looks like high quality, and the color & sparkle is just what I was looking for. I will be ordering more of these!

Reviewed by Eileen M.
on Sunday, January 13, 2013

LED Blue Mini Lights

We plugged them in when they arived. The true test will be on the tree at Christmas.

Reviewed by joseph F.
on Saturday, March 02, 2013

LED Blue Wide Angle

These LED lights are great, but they are a little expensive.

Reviewed by Edward S.
on Wednesday, April 17, 2013

Blue LED 5mm Wide Angel

These LED lights look great in my backyard.

Reviewed by Katherine M.
on Saturday, November 25, 2017

70 5mm Blue LED Christmas Lights, 4" Spacing

Love these lights. Nice, heavy gauge wire that hangs well. Lights are nice and bright. Love them!

Reviewed by patrick r.
on Wednesday, November 24, 2021

70 5mm Blue LED Christmas Lights, 4" Spacing

Very vibrant blue color lights. Looks especially nice on my trees in front yard.

Reviewed by john o.
on Sunday, June 03, 2018

70 5mm LED Lights, Blue , GW, 4" Spacing, Premium

These lights are great, I put them around my patio and they are really bright blue, love em

Reviewed by Bonnie R.
on Saturday, June 16, 2018

70 5mm LED Lights, Blue , GW, 4" Spacing, Premium

Little Blue Lights do a great job. These are not the ones I had in mind when I ordered but I have so many and wasn't sure how to describe them but these worked perfectly where I put them. I have never been unhappy with any lights I have bought from this company. Hope to order more closer to Christmas. I have their lights everywhere and most of the indoor ones are up year round and last forever.

Reviewed by James S.
on Sunday, July 29, 2018

70 5mm LED Lights, Blue , GW, 4" Spacing, Premium

Spectacular blue lights!

Reviewed by kyle h.
on Friday, November 16, 2018

70 5mm Blue LED Christmas Lights, 4" Spacing

The blue LED lights really stand out. A brilliant blue. Love it.

Reviewed by renee p.
on Thursday, November 23, 2017

70 5mm Blue LED Christmas Lights, 4" Spacing

Very vibrant color. Love them.

Reviewed by George M.
on Saturday, May 21, 2016

Outstanding Color, 5mm Blue and Gold LED

Having three children who all attended or are attending West Virginia University, and whose colors are blue and gold, I purchased these lights and combined the strings for our backyard decoration. The color is sensational and really lights up the yard with Mountaineer Pride!!! Extremely satisfied and I WILL be back for more come the holiday season.

Reviewed by Susan M.
on Saturday, December 29, 2012

Christmas lights

Very satisfied

Reviewed by Scott L.
on Saturday, January 18, 2014

5mm Blue LED Mini Lights - Order Early

These are very high quality, and will last years. Also, great customer service. Order early because the stock depletes after Thanksgiving.

Reviewed by Kate D.
on Tuesday, August 15, 2017

70 5mm Blue LED Christmas Lights

They are perfect.

Reviewed by Jeff D.
on Friday, January 06, 2017

70 5mm Blue LED Christmas Lights, 4" Spacing

These Lights Work Great!!!

Reviewed by James F.
on Saturday, December 20, 2014

BLUE lights!

Wow! These lights are the perfect blue color, you know, the kind that are so bright and blue that you almost can't focus on them. Once I got these, the quality of the lights and wire is readily apparent. These are so much better than the crud you get at all those unnamed retail stores. I highly recommend these to anyone looking!

Reviewed by Daryl H.
on Monday, November 24, 2014

Christmas 2014

I put a combination of the blue alone with the warm white led's on an 11 foot spruce -it is amazing and the focal point of my Montana home!!

Reviewed by Joan V.
on Monday, July 05, 2021

70 5mm Blue LED Christmas Lights

These lights are small, bright & very durable. Four years of uninterrupted decorative lighting before a replacement was needed!!

Reviewed by Carlton H.
on Saturday, July 10, 2021

70 5mm Blue LED Christmas Lights, 4" Spacing

This is the best website you can shop for Christmas items. My merchandise arrives pretty fast. I love the merchandise that I bought. Thank you Christmas Lights Etc.

Reviewed by Zen S.
on Wednesday, September 01, 2021

5mm LED Wide Angle Blue Prelamped Light Set

Holy cow are these lights fantastic. So bright I needed to add a dimmer in the room. But hey, that is NOT a criticism it is praise. True cobalt blue light. I loved them.

Reviewed by Robert A.
on Friday, December 13, 2019

50 5mm Blue LED Christmas Lights, 6" Spacing

We enjoy using these lights, extremely bright and blue. The ONLY downside is if a bulb goes out you cannot replace it, so you end up with an expensive defective light set. Please fix this issues ASAP, I had five sets go bad in one year, usually only 1 or 2 bulbs quit working. We should be able to replace bulbs.

Reviewed by Michael M.
on Saturday, December 28, 2019

50 5mm Blue LED Christmas Lights, 6" Spacing

Used this product to create the illusion of ice on a pond. I placed them close to the ground about 3 inches over the ground in a pond shaped pattern and placed mechanical deer on the perimeter appearing to drink from the water or frozen pond. It was easy to install and looks great.