Gary that really looks smick! I guess in my case I'd go to the L3, 400~690nm but I'm no expert in this...far from it in fact.
Kinda...I'll have what he's having...in this case what you are both having.
I got one of the TECs....40mm Sq. Was supposed to be 30mm Sq. Grrr
Back is playing up atm....will be down doe a day of so and no idea if what I'm typing is correct...on some nice meds!