https://www.ul.com/newsroom/publicnotices/ul-warns-of-solid-state-relay-with-counterfeit-ul-recognition-mark-release-13pn-52/
Generally, most LED power supplies are a constant-current type, and are often referred to as LED drivers. These can be purchased as off-the-shelf assemblies containing MOVs to meet lower-level surge requirements.
User interface. Sony has retained a similar menu system in the Sony A33 to that previously featured in the Alpha series DSLRs, but incorporating the new database-driven Playback mode from the NEX-series SLD models. The user interface of the Sony A33 is generally clean and easy to understand, with the one major exception being the rather arbitrary segregation of still images and videos in playback mode. Switching between viewing stills and videos requires the user to either enter the menu system, or zoom out to the thumbnail view and select the appropriate tab. Neither option is immediately obvious without reading the manual, and photographers unfamiliar with the interface might believe they’d accidentally deleted the unavailable media, not realizing they were simply in the wrong viewing mode.
It should be possible. I used to have a heated tray for keeping my home brew beer and wine warm while fermenting. It was probably only about 30 degrees C but mains voltage.
Stripping wire with my teeth (my front teeth have a perfect gap at the bottom for it, I could probably specify them in AWG) to fit the socket onto a phone extension cable. While rather stupidly forgetting I’d plugged the damn thing in downstairs. Yowch! Fortunately it wasn’t ringing. As a mistake, it was educational.
The LCD improvement I found most the most dramatically useful was the brightness settings. Set to Auto brightness, the camera will brighten or dim the LCD display in response to ambient light. This helps a good bit in bright daylight, but the display still washes out in direct sunlight. If you’re shooting in bright sun, though, check out the Sony A33′s "Sunny Weather" LCD brightness setting. Wow – That’s a really bright display! It does blow out the top end of the display’s tone curve (that is, you won’t see any detail in the highlights in your images in this mode), but this is the first time I can honestly say that I had no trouble viewing a camera’s LCD screen in direct sunlight. It’s a really great feature, although I’m sure it further reduces the Sony A33′s already-short battery life.
As with many other types of electronic devices these days, you can buy a “smart” EV charging unit that includes Wi-Fi connectivity. While this adds cost and complexity to what’s otherwise a plug-and-play device, choosing a smart charger adds a layer of convenience. These units allow an owner to use his or her smartphone to monitor charging, and how much energy the vehicle is using to help gauge running costs. Some smart chargers can communicate with your power company to only charge at off-peak times for discounted rates, and even receive commands via Amazon’s Alexa virtual assistant.
The two 120V legs are *in phase* with each other. Residential power in the US is single phase, sometimes called split phase because they’re both 120V relative to the center tapped neutral.
I forgot to say that 220 volt AC is effectively 310 volts peak, so therefor one could instead use 300 volts DC instead, giving roughly 25% less current to carry in the wires to get the same power in the end.
It’s possible to use solar power to charge an EV, usually via panels mounted to the garage roof, but this can cost upwards of $7,000 per installation. And that doesn’t include having a storage battery installed to capture power during daylight hours for overnight charging, which could double the cost.
To take it a step further, I’d take the time to measure the amperage on the circuit. I wrote a blog post dedicated to that topic, titled Using an infrared camera to find an overloaded circuit. Many home inspectors are opposed to doing this type of test, and I say those home inspectors shouldn’t bother scanning an electrical panel. If a home inspector isn’t going to measure amperage, I don’t know how they could report on an overloaded circuit.
True enough; This hack goes back decades floor finishers who have large floor sanders use this hack to run their large sanders.
This robot uses AI to find Waldo, thereby ruining Where’s Waldo | Lrd12 Overload Relay Related Video:
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