I don’t know about the battery life because I’ve had it plugged in the entire time. It’s been performing great though. I do have my doubts as of how long the battery can last while plugged in like this and turned on almost all day every day. But I’ve had it for a week and it’s been flawless so far.The clip and flexible stem have performed great as well.

Perfect for my husband’s guitar practice / music stand. Battery life not terribly long but for the price everything else is

I'm very pleased with my purchase of this LED Lamp. The 3 brightness choices are well done: on dimmest it gently illuminates my keyboard without being an eyeball Irritant. On full bright a great reading lamp and young eyes could probably get away with medium bright.Default color temperature is very pleasing, 4200K with all the LED's on. My eyes see a nice rosy cast to it, where competitor lights often have ghoulish green cast to them, reminiscent of cheap LED's and compact fluorescents: note one can change the color temp with a long button press and cycle through the 3 available choices from 3000K, 4200K, and daylight 6000K this way. Even at 6000K I still find it pleasing and natural looking.The integrated base/clamp is a great feature: very strong spring and the inside surfaces have a non-slip texture adhered to them. What I've found even better is that the gooseneck base is weighted enough to hold the lamp upright provided the light is reasonable centered over the base. This means I can just set it down on a flat surface when a clamping point isn't available. An upgrade would be to add more weight to the base to allow greater gooseneck mobility and light positioning.Battery life: I ran a test at full bright, 4200K (all LED's are on for 4200K) after fully charging it: 6hrs and still going so I'm buying the 60hr claim on the dim setting. Very usable with this battery life. A full charge only took a few hours. I have no way to measure this, but since its a single Li-ion battery that must be Boosting to drive the long LED string, it is likely constant brightness throughout the battery discharge.