Which one do you prefer to choose between K40 and K30? What factors will be considered?
You need to put links to these devices if you want any kind of reasonable preference.
The K40 is co2 and the K30 is an led by Laser Tree as far as I can tell… is this what you are tying to compare?
Well, we banned most of the accounts that LaserTree created because they used them to spam fairly aggressively, so now they are reasonably wary of posting links to their own products.
But if by K30 they meant their own product and were trying to jumpstart conversation about their products without being honest about it, that’s also spam… Our policy here is certainly to disclose commercial interest in the content you post, so if “K30” is actually a specific LaserTree product and they didn’t mention that, then this was another failure to disclose commercial interest. 