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This morning I was doing my daily eBay browsing and found a 250mw red module for just $7! I'm not really crazy about building lasers, but I thought it would be cool to put one of these modules into a pen host. I just wasn't sure how to accomplish this because I'm only used to spring modules in...

Hi. I want to make an multicolor laser with 3 adjustable laser modules. I just don't know the right way to go about making one. I was thinking I should just get the 3 laser modules (w/ driver) and stick a potentiometer between the power supply for each laser. Is there a better way? Would...

Hi! I'm having trouble choosing a 2w blue laser. I'm debating to myself about buying DTR's M140 Module with the glass lens for $53 and buy a driver and host on Ebay (total ~$80). However, I realized that there are some good options of prebuilt ones out there. My budget is <$120 for just the...

Hi! I am trying to build a 7-color box (Red, Green, Blue, Yellow, Cyan, Magenta, and White) with a 200mw 650nm module, 100mw 405nm module, and a 50mw 532nm module with a 6000mAH 3.7v 18650 for each. I was afraid that the output ratio was off, but someone suggested I used potentiometers to adjust...

Hi! I'm planning to create a 7 color laser box (Red, Green, Blue, Magenta, Cyan, Yellow, and White) similar to this one. I created a small diagram of how I am going to place the diodes and dichroic mirrors, but I need a little help on the output ratio. Ideally, I would like >100mw of output...

Hello! I am new to the Laser Pointer Forums and I need some advice buying my first real laser. I have gotten 3 cheap 5mw Lasers Pointers (Red, Green, and Blue) on Ebay along with one 5mw 303 laser pointer. The 303 has a very visible beam in my basement and at night, and a slightly visible beam...