Deal extreme or kaidomain Laser

[KRS1]

Hi

Im totally new to this forum and i being browsing here last few days. I want to get 30m/50w laser from Deal extreme or kaidomain, but i remember that read some where that these dont have any IR filter.

So could some of you expert tell me or confirm if any of them have IR filter?

Whats the different between true green laser vs green laser? how can you tell?>

Thank