Astro 450 Lumen Rechargeable LED Slim Light with XL Battery

I've been using this light professionally (helicopter mechanic) for a couple weeks now. Likes: - It's bright, and throws a ton of useful light. The light pattern is a nice, wide, even flood, and not a roughly bar-shaped narrow beam. - The light's brightness is infinitely adjustable between OFF and max. I can dial the brightness back if I'm working in an area where glare is a problem, or I just need a little extra light. Or, I can crank it all the way up and banish the darkness of a typical helicopter hellhole. - It's lightweight and slim. I can hang this light off a small wiring harness (with the built-in metal hanging hook) with no fear that it's causing unwanted stress or strain on the harness. I can also slip it into small spaces and gently wedge it into place, to precisely illuminate my work area and keep my hands free. - The magnetic base is super strong. This feature isn't quite as useful for me, as helicopters don't have an abundance of ferrous metal parts in the areas I'd be using this light, but it has come in handy in a couple spots. This feature is much more useful for auto mechanics and other tradespeople who work around steel & iron, and homeowners. I'm probably going to bond a piece of sheet steel to a piece of Plexiglass/Lexan to make a stand that fits my needs a little better. - Micro USB charging. The charging port has a small rubber dust cover to keep the worst of the dirt out, but it's not liquid-proof. Dislikes: - The switch. It's a single rotary switch (potentiometer, if you want to get technical...), for ON-OFF and brightness. There's very little detent at the OFF position, and very little resistance between OFF and full brightness. I'd prefer a stronger detent going into and out of the OFF position, and a little more resistance to rotation. - The battery life. I'd love for it to last longer, but a larger battery would increase the size & weight of the light.