flashlight lens for sale, brand-new and used.

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Description: Note: The product need prepared for 10~20 days, if you think it is too long, please donot buy it. Thank you for your cooperation. Wavelength: 445nm Maximum output power: 3.5W Threshold current :150-350mA Operating voltage :3.7-5 .2 V Package: TO-5 (φ9mm) Operating temperature: 0 to +60 degrees Celsius

UP FOR AUCTION VINTAGE ~ REPLACEMENT WELDING LENS ~ T12H OR T-12H I AM NOT SURE, BUT I DON'T THINK IT HAS BEEN USED BEFORE I TOOK SOME PHOTOS WITH A LED FLASHLIGHT SHINING THROUGH IT AND THE COLOR LOOKS TO BE A GREEN COLOR OR A TIAL BLUE (PLEASE SEE THE PHOTOS) I AM NOT SURE WHAT BRAND IT IS SO IF

RECEIVED AS SURPLUS Manufacturer: LEITZ MODEL# SM-LUX-HL WHEN THE POWER CORD WAS PLUGGED IN IT DID NOTHING. LIGHT SHINES THROUGH T0 STAGE USING FLASHLIGHT--STAGE MOVES RIGHT AND LEFT--FRONT AND BACK--UP AND DOWN--OPTIC LENS NOSE ROTATES--FILTER CHANGES FROM SINGLE BEAM TO A BULLSEYE LIGHT BEAM--TWO BLANK FILTERS--STAGE IS MANUAL

Greetings, Up for auction a Bausch & Lomb Monochromator Information given to me: These are a device that allows you to pick out a narrow range of light to pass thru it. The numbers are the nano-meters of wavelength of the light. you rotate the knob to get the desired number to be the center, and depending on the slit on the exit you will get a range around the dialed wavelength of about 5nm.