Blue Sea Systems LED Indicator Lights

Does what it is supposed to, but was quite surprised by how small it was. The red lens is lucky if it’s an 1/8” in diameter.

We own a whole-house generator and knowing the starting battery is being charged and is being kept warm gives peace of mind. The battery compartment within the generator housing is very small and difficult to service the battery. (See photo) You have to remove the front panel to do any kind of service. During the winter months, in the upper Midwest, it gets very cold – Originally, I put a battery pad heater (cold weather kit, by the generator manufacture) under the enclosed battery but had no way of telling if the battery was being warmed in cold weather – only when the generator did not start would tell me the battery was so cold it would not crank it up. I engineered a remote starting system with visual indication to give me peace of mind knowing I have battery power available when needed. I purchase a battery box, 6-foot battery leads, a 2-plug thermostat with a temperature probe, a 120-volt, 60-watt heater pad, a 12-volt, smart battery charger, insulation and two of these Blue Sea Systems 120V AC LED lights – one red, one green. I use the green LED to indicate if I have power to the power strip and the red LED to indicate when the heater is being powered (turned-on). Now, with a glance out the window, I know when the battery is being warmed and the power strip has power to it.

I really like these LEDs. I could not find a solution for my bathroom exhaust fan and bathroom heat. I wanted to have a countdown timer with a selector switch that would not allow Exhaust and heat to be selected at the same time (It would make no sense to heat the air and draw it back out the exhaust).I opted for a countdown timer. The countdown timer feeds a three way switch. The three way switch allows a selection of exhaust or heat but not both at the same time. There is no good way to tell if the ceiling unit is heating or exhausting.I used these LEDs to indicate which is selected. Green for exhaust and red for heat. Are used a blanking plate For housing the LEDs. I connected the leads under the screw terminals of the switch (each switch leg). The other two wires connected to the neutral.It was a very easy and cost-effective solution for my design challenge

Am totally happy with the purchase.Other reviewers complained about it not being bright enough, however I think it's OK... I have not problem at all seeing the illumination (Red or Green variety); the amount of light is typical as what one might expect on the front panel of a typical stereo system.. Not bright enough to "Catch" your attention (say, for an Emergency type feature/alarm), yet fine as an Indicator light for which you know where to look to find it.

No components required except just hook it up to power.

I installed this led on my fish tank stand as an indicator for my sump filter operation. I wanted it to be small but still easy to see. I will definitely purchase this led for future projects. It works great. Easy to install (with basic wiring knowledge). Good quality product.

The media could not be loaded.  Very easy to install at a great price. I used to remind me when the outside back light is on, so I can turn it off, if I see it on, it means light is on.

Small little LED. Kind of dim, but works. Does the trick if you need a 120v, small LED.

Tiny is the word not small. I was thinking small like a 1/4 inch but this is tiny. Was quite surprised it can actually work with 110 v AC. Drill bit is 11/64 ". Fits nice and snug. I think it will do the job as I paid a premium for it. I was patient there were options for 1/3 cost. I think they should be made to put hole diameter in the description. In the end it does work and will be an indicator light.

Not many 120V AC LED indicators to choose from on Amazon. This one is small and worked perfectly for my application.

Smaller than I thought but works great

Works perfect!

I installed four. Two of them were died in a very short time.