Focusable 638nm 700mw 12V Orange-red Laser Line Module w/ TTL & Fan cooling. Dual-mode Laser diode, it is not a very fine line. Laser head size:50x33x33mm Circuit Board size:4534mm Wavelength:638nm±5nm Output power:700mW Operating voltage:DC = 12V Operating Current:I<280mA Laser shape:Line Focusable:YES Modulation frequency: Adujstable TTL modulation. Operating Characteristics: continuous work Finish Color: Black Case Material: Aluminum The circuits control: constant current Warm-up time: None Operating Temperature:-10 +40 Storage temperature:-10 +40 Reverse polarity protection: with automatically identify the positive and negative Note: 1. This laser module brings TTL modulation, can work long time, is really industry laser module!!Please wear 600nm-780nm laser protection goggles to protect your eyes when working on this module. Feedback : 1Your Feedback is really important to us, please take a few seconds to leave great feedback if you are satisfied with our product or service, thank you so much!! 2We always offer the lowest price for best goods and service to you. We will try our best to solve the problem and leave you a happy shopping mood here. The item "Focusable 638nm 700mw 12V Laser Line diode Module with TTL & Long time working" is in sale since Thursday, August 11, 2016. This item is in the category "Business & Industrial\Healthcare, Lab & Life Science\Lab Equipment\Lab Lasers & Photonics". The seller is "uf910" and is located in wuhan, . This item can be shipped worldwide.