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I have several DC breakers from China and decided to test them. These have no agency approvals and who knows how they test them. I have a 55 ohm load and a Xantrex supply that will put out 2A. I set it at 95V which is petty minor duty for something rated at 600V. Just wanted to capture the arc...

I knew this was what every woman wants. Don't need to convince me on sellpoints. Forget GODIVA, get GVDA. Even comes in an attractive gift box. AliExpress always has the best ideas for your gift giving.

Everyone wants simple diversion and this uses cheap zeners, diodes and an AC solid state relay. This is a way to divert or turn on a water heater only when there is excess power based on array voltage going over expected power point. Instead of timers, use this as a way to prevent water heater...

Well, I didn't look hard. But this DSO152 is from a top tier of the bottom end test equipment manufacturers, FNIRST. It was less than $29 shipped including tax with accessories. This truly fits in your pocket being only 4X2.75 inches rechargeable by USB-C. This is a basic single 200KHZ channel...

And now for something completely different. For the last three years I have done my laundry with the power from four Trina 226W 30V grid tie panels. No battery, just an old MSW inverter where the series string is fed right to the high voltage capacitor of the H bridge output. We line dry so the...

Better be good at soldering, this baby is only an inch by 5/8. A cheap way to power to instrumentation with isolation. I paid less than a buck each for these including shipping and taxes when I bought 20. Arrived in just 12 days with their 14 day shipping. Rated 300ma, at 40ma this supply will...

I didn't believe it either. I have a large capacity LG front loader. It operates off four grid tie panels with the HV DC just going into a MSW inverter, no battery. Settings are COLD TAP so no added heating. I feed hot water into the cold inlet, PV heated, and all cycles are done with hot...

I just saw a video purporting to be a simple and cheap emergency system for emergency use. They used a buck converter and small inverter. My garage has a small shop above it and needed to power things once and a while. Big fan of no battery systems and this one is simple and cheap. Almost...

As smart as he was, he only got one Nobel prize. What was it for? Brownian movement photoelectric effect theory of relativity mass-energy equivalence

I used to do things just for the sake of science. Now I pretty much wait for something to break or there is an immediate need. I run my fridge off a dedicated MSW inverter I turn on and off with a microprocessor. A year ago I was playing around with hot start reset times and then the W7 laptop...

I just installed a 50AH Ampre Time battery at the end of a long run which is being charged from another battery. Consequently, it is unlikely this battery will ever see more than 13.6V when charging and with light duty it should never drop below 13.1V. Sounds like the Goldi Locks range. Off...

You bring your car in to be fixed. Next week something else goes wrong with the engine and its their fault. You can get married to any repair. If someone is local, I fix their stuff. Shipping anything now costs more than the repair. There is no upside to dealing with strangers.

I was searching and this popped up. Some new age holistic crap about dirty power from solar and you don't want to be near it. She had a fancy scope showing the imminent danger to your body. It was a triangular waveform with some noise. Didn't look like any kind of power I had ever seen...

This is in my continuing attempts to live off grid with only a very minimal battery. my case, a car battery. I purchased this LG washer because it had a variable frequency motor drive which greatly reduces surge currents and overall consumption of power. I am able to feed panel DC array voltage...

Well, they are probably right. I have Chase Rewards on my Visa. It is like Monapoly money and I use it to get gift cards for people. Not a big fan of Amazon, but sometimes they have a deal. Just got an email from Chase telling me I can redeam my rewards at Amazon directly. That's convenient...

Many say you can't have a dishwasher on small solar. Back a few years my wife told me she wanted a dishwasher at the camp. I told her I though I married one. That did not give a positive response. A few days later I was dumping some metal at town recycling and this pickup drove up with a nice...

I've been diverting excess PV power to heat water at my camp for years. It is the only source of hot water as I got rid of my propane heater. A simple method is used to determine when there is excess power. At the power point voltage, the maximum power is obtained from the panels. Use less power...