AIYEENfor Lightning to USB C Adapter,35W PD Fast Charging for iPhone 15 Plus Pro Max & Data Transfer,for Lightning Female to USB Type C Male Adapter,for iPad Air,for Samsung,Transparent with Light

It saves us fm buying new charging cables when many new gadgets have changed from lightening to type C. Though there is no indication of amp output as advertised for the item bought, the flashing light helps to indicate that electricity supply is on. Really like the cap coming along that provided good protection for the head when it is not in use. Would likely be buying again.

Decent quality little adapters that display useful information such as the wattage and voltage. Only downside for me is that in my use case, the screen is always upside down with no way to flip it the other way. And both of the adapters have the screen in the same orientation so it's not like you get a left and a right one but overall they do the job.

They slot in well without wobbling and feel durable enough to last everyday use. They're slightly long so do protrude a bit if I'm plugging them into my phone, but this seems to be the standard size for these kinds of adapters anyway. The LED readings are also easy to read and seem fairly accurate and consistent. Have been using them for over a month with no issues. I'd be happy to recommend.

The product I got was the AIYEEN USB C LED Power Display Extender Adapter,140W Short Dock Cable Extension Type-C 8K@60Hz PD3.1,USB-C Male to Female Thunderbolt QC & 40Gbps Data Transfer for USB-C Devices(2 Pack) Cm-Cf-140w-dd which is the one that has the LED display but runs at 40Gbps and 140 watt charging, as opposed to their other model that look like it's for USB 2.0 data speeds and only 30 watt charging.I have one power cable that has a version of this LED readout built in and I've found it really useful for checking that I'm getting the charging speed I'm expecting. These adapters offer more information because they alternate between voltage and wattage. Personally, I don't really need the voltage information but it could well be useful if you are trying to diagnose a problem or just what your port or cable is capable of.Because this is an adapter, you can slap it on either end of an existing USB C cable, either next to the device or next to the power source, and confirm what speed it's charging at.This means you can verify what the cable is capable of. If you know your device charges at 30 watts but it's only pulling 5 through an old cable, and the battery is at 50% then that cable may be a very old, lower spec one that you either don't want to use for charging, or at least not with that device.The battery percentage is relevant, because as you'll see if you use a readout like this, the wattage will drop off as it approaches 100% state of charge. This is to protect the lifespan of the battery, so your phone will charge to 80 or 90% quite quickly, then slow down. Thus, if you are looking to use this sort of adapter to check cables out, you are best off starting with a phone or tablet that's low on power.The price seems more than reasonable.

PROS-great way to be able to see how many watts are passing through a cable and reaching a device-also shows volts (but I find Watts a more relevant value)-fits cables well-I see no data transfer slowdown when comparing throughput with and without this adaptorCONS-these meters are always about 2W underreporting (when compared to the measurements I make with my more capable Fnirsi FNB58 USB tester). Not a big deal with higher wattages, but when transferring power at lower wattages, this can be significant.-only transfers 140W, when some cables go up to 240W now (especially the high end 40Gbs ones)NOTES-I have a few USB-C cables with meters like this built in, but it’s nice to be able to measure wattage through any USB-C cableMY STAR RATINGS:1* substandard, mostly cons2** barely acceptable, cons outweigh the pros3*** meets the basic requirements, cons balance the pros4**** good product, pros outweigh the cons5***** exceptional, all (or almost all) pros

I have one power cable that has a version of this LED readout built in and I've found it really useful for checking that I'm getting the charging speed I'm expecting. These adapters offer more information because they alternate between voltage and wattage. Personally, I don't really need the voltage information but it could well be useful if you are trying to diagnose a problem or just what your port or cable is capable of.It fits on either end of an existing USB C cable, either next to the device or next to the power source, and confirm what speed it's charging at.This means you can verify what the cable is capable of. If you know your device charges at 30 watts but it's only pulling 5 through an old cable, and the battery is at 50% then that cable may be a very old, lower spec one that you either don't want to use for charging, or at least not with that device.The battery percentage is relevant, because as you'll see if you use a readout like this, the wattage will drop off as it approaches 100% state of charge. This is to protect the lifespan of the battery, so your phone will charge to 80 or 90% quite quickly, then slow down.Thus, if you are looking to use this sort of adapter to check cables out, you are best off starting with a phone or tablet that's low on power.

Im sold on this idea of having power readings on the extenders on these, its the geeks equivalent of pigs in mud, why dont they all have this.I do own a usb power meter which I use for reviews and general geekiness to see how my gadgets are working, but since getting these I tend not to use it now unless I need additional readings over wattage and voltage, these are so much easier to use and from my tests are pretty accurate.In use when charging the led rotates from voltage to watts, if not charging it just shows voltage which is an added advantage if your using them to charge something as you can easily see if its stopped as it no longer will rotate between the screensVery happy with these