Frequent pandemic Zoom meetings and classes made clear the importance of lighting. W/o any light, my face was typically dark because behind me are windows or lamps.
Ring lights were an improvement, but they reflected in my glasses and the stands they came with took up too much space on my desk, or didn't allow me to get the light in the best position.
The Logitech Litra Glow is an almost perfect solution for me.
The light it gives off is perfect - not too harsh, doesn't make reflections in my glasses.
The quality of the lighting is very adjustable: The light itself has 5 levels of brightness, and 5 levels of color temperature from warm candlelight to harsh blue office flourescent light. I like the middle setting for daytime, and one notch warmer than that for nighttime.
The position of the light is also EXTREMELY adjustable: It rests reasonably securely on the back of your laptop screen or external monitor. The light can be raised or lowered, turned left or right, and tilted upward or downward. You can also remove the light from its monitor mount and put it on any tripod, which can be especially helpful for content creators. Also, you can adjust the monitor mount so it can be placed horizontally on your desktop, if you want the light to come at you from a different direction than your webcam, for example.
You can use all these features without any app, but there's also an app called Logitech G Hub that you can use to control the brightness, color temperature, and power on/off from your computer. I like using the app because the physical buttons on the back of the lamp are a bit clickly, which isn't bad, but I prefer silent operation, especially if I need to make an adjustment while filming or while on a call. The app also shows you your face using your laptop's internal (or external if you wish) webcam, so you can find the best combination of brightness and color temperature.
The light is powered via USB. You can plug it into any USB charger or portable battery, or you can plug it into a free USB port on your computer or computer hub. The light has a USB-C jack on the back and comes with a USB-C to USB-A cable. Since my Macbook has only USB-C ports, I am using a USB-C to USB-C cable (not included) to connect the light to my Macbook.
The lamp and monitor mount are made of plastic, of course, but the build quality seems very good, certainly better and sturdier than other lamp I've tried for this purpose.
I have only one minor criticism of the Litra Glow light: I wish the lowest brightness setting were a little dimmer. So far, it has not been a problem for me, but some content creators or some people with tricky lighting situations may find the lamp is a bit too bright at its lowest brightness setting.
All things considered, the Litra Glow lamp is really excellent and highly recommended, and more than justifies its higher than average price.