Yes they do, a labbie for $340. What is being offered for is $340? The DL web page says "M series 20mW + 5%" Additionally the specs section of the page shows M series 1 - 400mW even if you missed the dropdown menu of choices which reveal the prices for the unit offered when picked.
f you view the dropdown and look at the only two 532nm, 500mW units offered they are: "FN series 500mW + 5%" @ $1450 and "H series 500mW + 5%" @ $850
So none of what Dragon Lasrers offers is what is being offered in this GB, that is why I questioned this GB offer of a 500mW 532nm CNI labbie for $200?
The data sheet link in th OP show a PGL-V-H which is low cost a light show/stage lighting laser --that is how they are described everywhere that sells them--enay, aliexpress and others.
Is not a really "labbie" in my way of thinking.
The CNI data sheet shows several diffent stabilities offered offered for PGL-V-H and anaolg or TTL modulation choices etc.the worst is a 532nm w.stablity <20%-which spec is being offered for $200
PGL-V-H is shown on the CNI data page under "Low Cost Green Laser" here
532 nm green laser.
Anyway, need to know all the details and to be able to consider participating/buying. So my question is still what 500mW 532nm is being offered with what specifications and what power supply for $200?