405nm Violet Blue Purple Laser Dot Diode Module 20mW 13mm x 42mm with US AC Power Adapter

405nm Violet Blue Purple Laser Dot Diode Module 20mW 13mm x 42mm with US AC Power Adapter

$ 9.80

Score By Feature

Based on 20 ratings

Packaging

5.99

Delivery

6.00

Customer service

6.46

Value for money

6.49

OveReview Final Score

How Our Score Is Calculated

Product Description

The wave length is 405 nm, and the output power is 20 mW

This device works with a 3V-5V voltage. A working current of 5 V

A laser with a dot shape

A violet/blue laser module with driver is used as an industrial component for numerous applications, such as manufacturing, laboratories,

If there isn't a temperature control device on it, please be careful when you are testing it.

Questions & Answers

type of collimator lens is this (three element, single g type, or something else)?

This collimator is made of plastic with a single

It allows you to engrave objects, yes or no?

That does not mean it can be engraved.

In the absence of a heat sink and using the provided power supply, what is the operating duty cycle of this device? Are you in need of air (free)?

Exactly what was needed was the source

Selected User Reviews For 405nm Violet Blue Purple Laser Dot Diode Module 20mW 13mm x 42mm with US AC Power Adapter

In light of the excessive duty cycles that I had for the laser, that's rubbish

3/5

In the power of - Laser supply failed after 20 minutes of continuous use, which is total rubbish considering I have duty cycles that last less than five seconds for the laser. Also, I tested the power supply with a multimeter and the laser diode with an identical power supply to determine whether it was the power As of this writing, the laser was still working.

Ari NAYLOR

| Sep 11, 2020

I found it to be very efficient and effective

4/5

The stability I experienced was a surprise to me. In this experiment, we used an Ocean Optics spectrograph/diode array as a detector and a laser as an excitation source for luminescence spectroscopy. I found it to be very efficient and effective. Despite my expectations, the laser source turned out to be remarkably stable. A period of 15 minutes irradiation can result in an intensity change of less than 1% based on our estimates. As a second step, a 1 m fiber optic cable was run down the length of the output. It was then passed through a spectrophotometric cell (with an The last time we used it, it was two times My experience has been limited to 3 times, so I cannot say anything about durability at this point.

Asher Campbell

| Jun 09, 2021

It's unclear where the labeling begins and ends, and you may experience power outages

4/5

There is no indication of the laser's output power on the laser itself. In some cases, the power supply is not working. However, it is a very cheap laser so for the price I am satisfied.

Caden McLaughlin

| Feb 19, 2021

This is a laser I was happy with the results

4/5

Crystal Bowers

| Nov 30, 2020

The products I review are not rated by me

3/5

Reports and grades can be falsified by anyone! Often you'll get lucky whenever you shop in China, as the country sells a lot of low-quality junk! The grades I give don't matter to me!.

Dion CHAMBERLAIN

| Jul 15, 2021

Laser with a very high power

5/5

I would recommend this product to friends who want the best focus possible.

Marie Bright

| Feb 15, 2021

This is a One Star rating

3/5

What a mess.

Renata Shelton

| Jun 04, 2021

It is the best way to capture nanopulse spectral images

5/5

The situation is fine. This unit operated for 18 straight hours with better than 27% efficiency while it was set up on a bench with a 1 watt heat sink and a custom power safety cut-out system. This level of stability is 4%. I strongly recommend this for nano-pulse spectral photography! The more I get, the happier I am.