6LED Car Truck Emergency Beacon Warning Hazard Flash Strobe Light Blue/Blue 4-pack

Purchased: Red/WhiteThese lights are very easy to install and work well, I've used them for some time now and no LEDs have burnt out nor has any water gotten into the housing.However, while these lights work very well at night, they are extremely hard to see during the day. I cannot attest to the other colors but the red/whites struggle during the day time.

A nice light overall. Great as secondary warning lights. Not as bright as I'd like during the day but at night... WOW! Nice! Good visibility off center, too. I wired all these together with a chunk of 18/3 extension cord I had laying around, to a 5amp circuit on my Blazer Wireless switch block. Black (-), Red (+) switched, Yellow (+) momentary switched. The Yellow wire is wired to a 3amp circuit with other multi flash pattern lights. Each light set has a physical momentary switch mounted under the hood. Turn on the 3a circuit and press the momentary switch to change the flash pattern of which ever light set I want to change, then turn off the 3amp circuit.Wiring Tip: Hook up each light individually to a 12v power supply to check the flash pattern, touch the Yellow momentarily to positive, until both sides stay on. Now, once hooked up, all lights will cycle through the same flash patterns.Mounting tip: Only drill the 1/2" center hole. Use that grey, heavy duty, double sided mounting tape to stick it to the mounting surface. Cut a 1/2" hole in the center of the tape. The 1" tape fits perfectly on the back side and makes a nice water tight seal.

overall they are good lights. bright, slim, easy to install. however they dont stay in perfect sync but for what they are its fine. out of the box one of the lights the wires on the back were pulling out and caused them to short. i have some background in electrical devices so i pulled the unit apart and i had to re sodder the wires to the board. i the sealed it with rubberized calk on the lens and the wires. i have had no issues out of that light. a month or so later another light i noticed some condensation build up in the lens. i figured it would be fine but eventually it stopped working. i just pulled it apart and unfortunate i think its toast. IF YOU SEE CONDENSATION IN THE LENSE EITHER REPLACE OR REPAIR IMMEDIATELY.in all honesty you are getting what you paid for. i orderd another set and im going to re seal all of them as soon as i get them.long story short they are bright in day and night. they have a few flaws but for the price they are pretty good.

Installation of these lights are simple enough and the patterns function as expected. If you look at them directly they're decently bright lights but they're about the same brightness as you find of lower end bicycle lights.

Easy install, and very bright. Only problem is after 6 months 2 of them stopped working due to moisture being able to get in. I have no idea we’re it got in at, but the lights stopped working. Did not help that a friend of mine was surprised at what I paid, and made the comment “We see how they work in 6 months”

Not completely waterproof so some silicone is a good idea. Great flash patterns. Downside is you can’t sync them, and if you have more than one going at once in any pattern, they go out of sync in less than a minute. Good lights for the price.

The media could not be loaded.  Strong construction. The screws strip easily so be careful not to over tighten. Other than that I am highly satisfied with the value I got for the price. On the bench test they appear very bright. I am waiting on a new switch box for final installation on the vehicle but they look great!UPDATE!!These lights have held up very well. I have 2 mounted inside and 2 on the bumper. I added a little silicone to the backs of the ones mounted outside for some extra weather resistance for a safe measure. Very bright. Only con to these I have found is that I cant get them to sync to each other.

The media could not be loaded.  Needed a flashy light for a project and decided to give these lights a try.Came as a set of 4 and has different settings just take the yellow and touch the red wire and the lights change.I will be clearing a path through a large tract of property I have and needed some type of guide to help keep me in line with the property line which is dead North.I rigged this up so I can have a guide to help me stay as close as I can to the line I want to clear and be able to look back to have a view of the flashy lights as a guide.Good product and good price.