I have the O-likes you are referring to...
The 250mW 650nm is more like 150mW, atleast mine is. It burns but you need to fiddle with the focus a bit to get it right.
The 1W 445nm is a nice laser. The specs are @ 700mW with the waterproof lens. It is definitely brighter with the 3.6 volt 123a's as opposed to the standard 3.0 volt versions.
The 400mW 532nm is a bit of a mode hopper until it warms up, I don't have a LPM, but compared with another 532 I own that has been LPM'd, it's firing at about 300mW...burns well.
O-like is a good company, they ship fast, communicate well. I recommend them.
Wow. As seen in the other thread, $500 for a mill/lathe combo? Now I'm just disappointed that my tiny studio apartment doesn't have room for a workbench... I'd have so much fun with that. Still need to figure out if I can use the uni machine shop for personal projects; that's the only thing keeping me from a custom 445 build.
If you are referring to just the O-like 650nm's...I only own the 250mW and I highly doubt it's even close to 250mW. Like I said, it's more like a 150mW.
If you are referring to all the O-likes I have listed. For the money...I would go with the 445, but then again there are plenty of members on here that will sell you a custom built 445, with more power, better quality and cheaper too.