Sorry, but when I build lasers I like to build them dual power. The Green in low power mode is 50mW, but in full power mode is 100mW. I use low power to focus the laser and set it up. Full Power is for popping balloons and lighting matches... All my lasers are what I like to call bench top lasers. That is they sit in a bench top and are not the handheld kind.
The Red is 638nm.
The green is 520nm.
The blue is 450nm.
Oddly enough, I didn't put any fans on the lasers, just large heat sinks. Maybe for my 1.8W Blue laser I should put a fin, but tests show that I can run for about 5 minutes before it gets too hot. The red seems to run OK without a fan and I'm testing the cheaper heat sinks to see which does the best. If I go for more power than 1.8W a fan is going to be a requirement.
You can get the 40 mm fans in +12 VDC or +5 VDC for very little money. I stock both as they are useful even if you think the lab host doesn't get hot enough. The fan will carry off a lot of the heat, keeping the diode nice and cool. For the money, I see no reason to not use one every time.