Review on KEING Momentary Waterproof Rocker Switch Toggle - ON/Off/ON Red LED Light - 12V 20A 24V 10A, 7 Pin for Automotive, Marine, Boats, Trucks, Trailers, 4x4, Caravans, RVs, SUVs, ATV, UTV & More by Patrick Keita

Waterproof KEING Momentary Rocker Switch Toggle Switch - ON/OFF/ON Blue LED - 12V, 20A PROS• Price•LEDs•May suit some low current applications CONS•Cheap design• Bounce switch•Sounds cheap • Works not with digital input application. DESIGN The change comes with the price, and it shows. I wasn't expecting a high performance, military grade switch, but it appears to be made from average quality materials with an emphasis on cost savings. That's not necessarily a bad thing, as the cost savings seems to be passed on to the buyer given the price below the $7 I paid. Weighing 1 ounce (29 g), the switch feels "plastic" in your hand. The cables that came with it were pretty good and well made. The wire was flexible and the insulated contacts and locking mechanism were as described. PROBLEMS Creating at a price was beneficial to the buyer as the price was attractive. The same price caused problems that forced me to return the product. A simple continuity test shows that the contacts close as expected and for this reason I believe the switch will work for normal applications with little effort. However, if you are using this switch to operate any type of digital circuit, I would caution you to stay away from this switch. Contacts suffer from a large number of bounces. For those who don't know what it is, switch bounce is the literal bouncing of internal contacts as they close. The best analogy I can give is a tennis ball falling from a height of 6 feet. The ball hits the ground, then bounces several times before coming to rest on the ground. Each jump is slightly lower than the previous one. The derailleur rebound is the same concept. This is the "bouncing" or rapid opening of the switch; stay open for less time each time before the contacts close, affecting some digital circuits. Without going into too much detail, bounce tricks and confuses input because this type of response is very fast. There's a lot of bounce in this derailleur, probably due to its internal design. I have other switches, almost identical on the outside, that hardly jump as much and trigger the digital inputs just fine. LEDs LEDs are good, but not very bright. They are visible in low light or in a normally lit room. The LEDs can be controlled independently from the switch with some creative wiring. Although the switch is momentary, the LED can be wired to be on or off while still lit, but you'll need to add a few wires from your actual controller. circuits (12 V DC). The LEDs are old school domed LEDs and not surface mount. WATERPROOFI have not been able to test this in my actual application as it failed my initial tests for use with the digital latching relay I am using, so I cannot confirm its water resistance. . If I had to guess, there are probably some o-rings where the switch post enters the case and on the LEDs where they go through the case. The switch also comes with a thin gasket to seal it to the panel. CONCLUSION I wanted to like the switch, I wanted to use it in my design (motorcycle auxiliary lighting circuit) but it wasn't suitable for this application. I suspect the contacts in the switch are of poor quality and will question the switching cycles before they fail or wear out. Based on my disassembly of other derailleurs of the same type, there are likely weaker springs, smaller contacts and more tolerance variation giving it a cheap feel and issues with the derailleur. If your application is not digital in nature (you're not switching ground or voltage to logic) and your needs in terms of using and driving an amplifier through the pins are modest, then this switch might work for you.