If you search online long enough you will find a never-ending list of different flash or strobing products to customize your vehicle lighting. You can get “wig-wags” that flash light bulbs back and forth, you can get momentary or always-on flashers, it really just depends on what you are really trying to accomplish. One product that I have found that I really like is the new waterproof LED flasher module that is designed to be used on your LED 3rd brake lights. Some people have even used this product on their entire braking light system which works well also because the flasher can handle up to 10 amps of current draw. If all of your rear-facing lights on your car are LED then this isn’t a problem because it will likely be far below 10 amps.
The idea behind this flasher module is simple. You hit the brakes and your light flashes several times, very quickly, and then stays on steady until you release the brake pedal. When you hit the brake pedal again it will flash again and then stay on steadily until you let go; and again and again and again. This modulating brake light function will grab other drivers’ attention behind you and they will be more attentive to your driving, and your vehicle in general. This is really a safety product, but it’s pretty cool too!
The other think I like about it is that the install is fool proof and the product itself is water tight! There are only two wires to hook up. You cut your power wire in half, send one of the flasher module wires to one side and the other flasher module wire to the other side. Also the guts of this particular 3rd brake light LED strobe module are all potted in black silicone and will not let any moisture inside – this is particularly important because sometimes, where you will mount this product could possibly be exposed to the elements, depending on the installation:
Here’s a video demonstration of this product installed on a Jeep Grand Cherokee 3rd brake light: