USB Rechargeable LED Safety Lights (2 Pack) - Clip on Strobe Running Lights for Runners, Joggers,Walkers,Kids,Dogs,Bike Tail Lights - High Visibility Accessories for Reflective Gear

I'll start off by saying these are the best personal LED's I've used. That said, they are bright, but very compact. The clip is sturdy and the attachments they come with are actually very good. The others on here are junky and the clips break.I saw some questions on how bright they are. They will light up a room as you can see and you can definitely read a book or a map easily at close range. But these aren't meant to light up, they are meant to be seen! My neighbors said they could see them from a good distance. I put the green one on my dogs harness.I got blue first, loved them and bought another set in green!!! The different colors show up and stand out at night. I'm a police officer and will use them on duty while directing traffic. Clip one to each shoulder or my traffic vest. Ill probably buy another set just for that. Knowing and being around LED light, red tends to mix in with taillights at night and not be seen from as far. Blue and green are always the most eye catching at night and seen the furthest. You can pick up the light quicker among other light.The switch is easy to use. Cycle through them for your setting and the last one to turn them off. They have low, high, slow and fast flash and a hyper strobe. The USB cover doesn't feel the sturdiest...I dunno how long it will last.Best thing about them is they are rechargeable!! They truly do recharge FAST. I did some actual run time testing with these to see if the descriptions were right. I left one running on hyper flash mode and one on steady high mode. Here is what I found:I left them on for 7 hours one evening while I went out to dinner and running around the house and Netflixing. The next night I left them on for 4 more hours, still running fine, but did go to a dim mode. After about another two hours of dim I decided it was 12 hours of use and still no orange indicator light telling me to charge them. (They have indicator lights built in). 12 hours was good enough for me!!!I put them both on the charger at the same time. I charged one for 5 minutes and turned it back on full power just to see how long it would go. It went 4 hours full power on a 5 minute charge!!!The other i left on the charging cable. The red charging indicator light stayed on for a little over an hour before turning green to indicate complete.Works as described and better than my expectations. Now, we'll see how long they actually work and battle test them. Ill update if anything changes.

UPDATE 11/18/18: Hats off to Keywell. They read my review and promptly reached out to me. They were professional and polite. Almost immediately, they offered to replace the faulty light AND DID! I received the light and got a follow up email the very same day! I was very impressed with their exemplory customer service. I have upgraded my review from 4 stars to 5 for the customer service, not the light {switch}... yet! I will see how it holds up (& update my review), which was my initial and ONLY real criticism about it.That said, if I do have any other problem with the light, I now feel confident this Keywell will stand behind their product and make it right. This light is a great value; it is bright, offers 3 choices for light (steady light, blinking and SOS), lightweight and can be charged/recharged in less than two hours. I would recommend this light for serious consideration. I am now a happy camper.There are many things to like about this light. It is bright, it is USB rechargeable (& recharges quickly!), it is very lightweight and attaches to anything easily with the included clip. Unfortunately, as I read in another review, the light switch on top is not terribly responsive. I purchased this on October 4th, loved it, but am already having issues with turning it on and off. There is a 60 day no questions asked return policy and two-year warranty. I honestly am not sure I can see this lasting two years without going through AT LEAST a few replacements. I hope the seller reads this and reaches out to me because I have no way of contacting them.

Update #2: After some switch issues on two lights and a lower review, Amy with Keywell contacted me to send replacement units with improved switches. Fantastic customer service plus the new switches feel much more positive. These lights are now perfect for me.Update #1: Switches on 2 out of 3 units have pushed in after only a few weeks of use. The lights still work but are very difficult to switch on and off, esp. with full-finger gloves. It's a shame that such an otherwise great product has such a basic flaw.Overall: Exceptional lights. I wish I'd come across these first. I cycle 2 hours a day in the dark. I clip these on my socks/cuffs depending on the weather and as extra lights on my backpack.Pros:* Very compact, smaller and less weight than other rechargeable clip-ons I've used* Long lived (I get at least 6 hours of blinking)* Super bright* Convenient on/off/mode switch, no need to hold the switch down for 3 seconds to turn on and off* Only three light modes: steady, blink, and SOS. Two clicks and I'm blinking. Another two clicks and I'm off. I don't need to cycle through three speeds of blink and three levels of steady brightness.* Easy to use, secure clip that you pinch between your thumb and finger like an old-fashioned clothespin (other clip-ons I've used have overly tough springs and awkward clips that are nearly impossible to use with summer gloves on and that actually break)* Micro USB chargers are everywhereCons: None yet.