3 Adjust the focus: Yes. TTL signal input: 0V ON/5V OFF. 7 Frequency for TTL control: 0-20KHz. 8 Cooling mode: Heatsink and Fan. 1 10-25 days to USA / Canada (USA usually less than 12 days).2 15-25 days to United Kingdom. 3 15-30 days to most countries in Europe. We are glad to leave positive feedbacks for you. The item "Focusable 520nm 1000mW Green Laser Module/12V/For LAB Light/Stage Light" is in sale since Sunday, November 12, 2017. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Lamps, Bulbs & Laser Components\Laser Modules & Heads".
The seller is "techhood" and is located in Shenzhen. This item can be shipped worldwide.