![FSHH-4-4 Round 4pin ROSA LD detection socket 4 pin laser diode test socket Photosensitive test socket - AliExpress FSHH-4-4 Round 4pin ROSA LD detection socket 4 pin laser diode test socket Photosensitive test socket - AliExpress](https://ae01.alicdn.com/kf/Hf9a6c0611a5b4d1cbfc19897621e61538.jpg_640x640Q90.jpg_.webp)
FSHH-4-4 Round 4pin ROSA LD detection socket 4 pin laser diode test socket Photosensitive test socket - AliExpress
![Where do the negative and positive wires go baded on this pinout? | Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers Where do the negative and positive wires go baded on this pinout? | Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers](https://laserpointerforums.com/data/attachments/31/31890-806ad34eab27aa0b9bc54db41db85bbb.jpg)
Where do the negative and positive wires go baded on this pinout? | Laser Pointer Forums - Discuss Laser Pointers | High Power Lasers
![4 Pin Laser Diode Test Socket ROSA 4pin LD Detection Temperature-sensitive Photosensitive Test Socket - FSHH Store 4 Pin Laser Diode Test Socket ROSA 4pin LD Detection Temperature-sensitive Photosensitive Test Socket - FSHH Store](https://www.fshh1688.com/wp-content/uploads/2022/08/%E4%B8%BB%E5%9B%BE8.jpg)
4 Pin Laser Diode Test Socket ROSA 4pin LD Detection Temperature-sensitive Photosensitive Test Socket - FSHH Store
![FSHH-4-5 Round 4pin ROSA LD detection socket 4 pin laser diode test socket Temperature-sensitive test socket - AliExpress FSHH-4-5 Round 4pin ROSA LD detection socket 4 pin laser diode test socket Temperature-sensitive test socket - AliExpress](https://ae01.alicdn.com/kf/H239523b13b5f42c48bb398546e2791a5e/FSHH-4-5-Round-4pin-ROSA-LD-detection-socket-4-pin-laser-diode-test-socket-Temperature.jpg)
FSHH-4-5 Round 4pin ROSA LD detection socket 4 pin laser diode test socket Temperature-sensitive test socket - AliExpress
![China Professional Design 4 pin laser diode - 976nm 140W High power and brightness wavelength locked diode laser – BWT suppliers and manufacturers | BWT China Professional Design 4 pin laser diode - 976nm 140W High power and brightness wavelength locked diode laser – BWT suppliers and manufacturers | BWT](https://cdn.globalso.com/laser-bwt/976-140W.jpg)
China Professional Design 4 pin laser diode - 976nm 140W High power and brightness wavelength locked diode laser – BWT suppliers and manufacturers | BWT
![Does anyone know what kind of laser diode this is? Taken from old PC DVD drive. It has four pins. : r/lasers Does anyone know what kind of laser diode this is? Taken from old PC DVD drive. It has four pins. : r/lasers](https://i.redd.it/does-anyone-know-what-kind-of-laser-diode-this-is-taken-v0-5usaps3wyjw91.jpg?width=4032&format=pjpg&auto=webp&s=92cf58406a2b8cc9fe7953796fcaa6e590435b09)