Wearable Safety Lights

Night Light

Night owls and 4id Founders, Ron Biron and Rodger Bailey, strive to keep active people safe with their light bands. They’re a great addition to regular exercise gear and slip on easily with no extra bulk.

Wrap them around the heel of your sneaker or bicep, or attach a light up leash to your canine companion to increase your visibility. The ultra-bright, rechargeable LEDs last for hours, and you can set them to glow continuously or flash. And each light is weatherproof, so you’ll have an extra measure of safety in
any conditions.

Whether you’re walking to work early in the morning, or out for an evening jog, you’ll have additional peace of mind from this bright idea.
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4id Update3:2017 V2

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Grommet Launch Conversation

  • Ron

    Hey Everybody!

    We are really looking forward to introducing our great products to the loyal Grommeters! Our PowerArmz & PowerSpurz products will be great additions to your night-time activities. Whether it is going for a run, bike ride, walk in the park, or any outdoor activity at night, our PowerArmz & Spurz will keep you safe & seen! With a distinct bright orange color ideal for nighttime visibility & multiple setting for a continuous or flashing light, these products will keep you well lit for well over 70+ hours.

  • Ron
    Ron – Special Guest
    4/2/2014 10:34 AM

    Hey Grommeters, I'm Ron & I'm happy to give you all any product info or answer any of your questions on the Power Armz & Power Spurz Light-Up products!

  • Lise
    4/2/2014 12:26 PM


    I am wondering if you ever had any trouble with the PowerSpurz coming off the shoe. Does the grip of the device weaken with time?



  • Ron
    Ron – Special Guest
    4/2/2014 12:47 PM

    @Lise good question, we have not had issues with the Spurz coming off. They were designed specifically to adhere to heels of shoes. The device does not weaken over time. Hope that helps...

  • erika
    4/2/2014 1:12 PM

    @Ron Thanks for the quick response - A couple more questions... has anyone on the design team worn the arm band around their ankle, so that the light is facing forward to alert oncoming cars? Did you administer a test where you are the driver, and as the driver, can you see the heel lights on a runner coming towards you?

  • erika
    4/2/2014 12:29 PM

    Sorry.. but I don't understand: When you walk or run on the road you're supposed to run against traffic. How are the lights on the backs of your shoes supposed to alert drivers who are driving towards you that you are there? Personally, I hate wearing bands on my arms so the arm bands are out of the question. Do you have to wear the heel bands on your heels? What kind of gripping material is used for the heel band? I see that the heel band applied pressure to the shoe to stay on, but does each end have some kind of rubber or silicone on the inside for extra grip? Have you tested these on long runs, 8+miles, so that you know they won't fall off?

  • erika
    4/2/2014 12:40 PM

    @erika I'm not sure if I phrased one of my questions right - Can you where the heel band on the front of your shoe, where the laces tie? I do a lot of road running and the cars I'm most worried about are the ones who are coming at me from the front since runners/walkers are advised to be on the left side of the road.

  • Ron
    Ron – Special Guest
    4/2/2014 12:50 PM

    @erika good questions Erika... The spurz will only fit on the heel of the shoes. I have personally been training for a 1/2 marathon & I run at night, I've been recently running in the 6-9 mile range & have not experienced any issues so far.

  • Kim
    4/2/2014 12:33 PM

    How exactly do these attach to shoes? And would they work on cycling shoes?

  • Ron
    Ron – Special Guest
    4/2/2014 12:52 PM

    @Kim hi Kim, it is imperative to place the spurz horizontally on the heel of the shoe. The spurz do adhere well to cycling shoes. We sell our products in many bike shops across the country...

  • Dorothy
    4/2/2014 1:06 PM

    Is the power source renewable or would I need to purchase a new band when the lights go out?

  • Ron
    Ron – Special Guest
    4/2/2014 1:10 PM

    @Dorothy Hi Dorothy, the power source is a watch battery & after it runs out, it is replaceable w/a watch battery that can be purchased at any general store or pharmacy (Walgreens, Target, etc)

  • Guest
    4/2/2014 1:26 PM

    Is this correct?: Fits arms ~9-13" / 22.9-33cm in diameter

  • Ron
    Ron – Special Guest
    4/2/2014 3:38 PM

    @Guest 9"-15"/22.9-38.1cm

  • Kristene
    4/2/2014 1:28 PM

    I notice briefly in your demo a dog running toward the camera, obviously wearing one of these devices. For me, that's a highly desirable item: a collar of some sort for my dogs, whose sizes vary from very small to a 100 pound German Shepherd. Whatcha got?

  • Ron
    Ron – Special Guest
    4/2/2014 2:11 PM

    @Kristene good question, Kristene. Our Power Armz arm bands have an adjustable band that allows people to wear the band to their proper size. Many people have told us they have used the power armz for their dogs. Hope that helps

  • Kristene
    4/2/2014 7:13 PM


    Thanks! What would the maximum size be?

  • Jr
    4/2/2014 4:07 PM

    Are these lights rechargeable or are the batteries replaced?

  • Aaron
    4/2/2014 6:30 PM


    Hi JR,

    Aaron from The Grommet here. Yes, the batteries are replaceable. You can find additional information about the products by clicking on the photo of the product, which will take you to the page where all of the details are displayed.

  • Melinda
    4/2/2014 9:44 PM

    I have purchased other products that say they are good for any weather only to have them turn out to be not so waterproof. I live where there is extremely poor drainage and often find myself leaping (sometimes not so successfully) puddles. My question is, just how waterproof are the spurz? If they turn out to not be so waterproof, what is the return/replacement policy?

  • Aaron
    4/8/2014 8:53 AM

    Hi Melinda,

    From 4id:

    "Our products are built to sustain being out in the elements in inclement weather. They work well in snow, rain, mud, but they should not be submerged into water for more than a minute. Being exposed for more than 1 minute will damage the product."

  • Jane
    4/2/2014 10:16 PM

    Are there batteries or do we need to buy them again?

  • Aaron
    4/7/2014 10:46 AM

    Hi Jane,

    The lights come with batteries and they are replaceable. They use standard camera batteries (CR2032).

  • Pat
    4/2/2014 11:26 PM

    very neat idea but you need to sell them as a pair. and not for $40. more like $30 and i would buy a pair for the shoes for my granddaughter as she likes to play night games in the summer

  • Aaron
    4/7/2014 10:45 AM

    Hi Pat,

    Aaron from The Grommet here. Thank you for the feedback on pricing, we will certainly pass this along to 4id.

The launch day conversation has ended. Please direct further questions about this Grommet to our Community Experience Team.