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Nature’s Rainbows is a non-commercial web site maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.


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Glow Notes - Equipment Posts

The posts below are all posts in chronological order.   Blog posts may be narrowed by the five categories listed, or the entire list viewed by returning to the main GNB page above.  Page through posts using "Next Ten" links at the bottom of the page.

July 8, 2015

(This is copied from a Facebook post by Bruce W.  Black boxes are had to find for our hobby; white boxes destroy fluorescence.):

Ever want to store your glow rocks in boxes, but don't want to pay for flats? Do what I do - collect copy paper boxes at your place of busine...

June 7, 2015

In general, the Ah capacity of batteries sold from China are not worth the plastic they are printed on. The vendors/manufacturers lie so they can get you to click on buying theirs over some other fraudster's batteries. Best to buy genuine Sanyo Eneloop or genuine P...

June 2, 2015

The most powerful 365nm flashlight in its class (or any class). Open source design

May 3, 2015

Friends don't let friends use crappy unfiltered 390nm flashlights.

This is an educational post, directed towards folks new to the hobby. There has been discussion in our FB group lately about using cheapie 39Xnm flashlights for fluorescent minerals. I am passionate abou...

May 2, 2015

A pet peeve of mine is honesty in advertising.  Over the past 3+ months I’ve seen companies advertising ever higher power Convoy type flashlights – usually with an LG LED. Every single one of these ads is misleading – I could say downright lies but my bet is that the f...

May 1, 2015

It's the wild west out there!  About three years ago I wrote a blog post about the Convoy S2+ here on Nature's Rainbows.  The FLM collecting community embraced this new high-power LW flashlight and almost every serious hobbyist I know now has one in their toolkit....

April 16, 2015

I have happily been using and recommending the Convoy S2+ 365 nm UV flashlight since early 2017 when Mark Cole first posted about it. It is a fantastic product, small and powerful and cheap. However, it is a little too small and I found myself putting it down and forge...

March 6, 2015

Over the years I've had requests for lighting controllers that would allow us to remotely control our different wavelength lights, as well as cycle through the lighting automatically, turning them on/off at a programmed rate/sequence.  I've toyed around with writing cu...

February 13, 2015

By now the fluorescent mineral community has heard of the new Convoy S2 365nm flashlight that has taken our hobby by storm.  It is the most significant new technology to hit our hobby in years, or even decades.  Based on a high power 365nm UV LED, it is providing field...

February 11, 2015

Fluorescent minerals are found almost anywhere there is a good selection of white light minerals. Mine dumps/tailing piles are obviously great candidates for any mineral, fluorescents included. Many abandoned mines and prospects offer good hunting, as well as remote...

February 7, 2015

This post was made over four years ago. Since that time it has become outdated.  There is a new light - the Convoy FyrFly which is significantly brighter and a major next-generation of an already excellent light.  Technology moves on; I hope to do a review on it a...

February 1, 2015

Rock collecting is a cheap hobby.

Fluorescent rock collecting is an expensive hobby.

View the Entire Review Here: Mineral Lights

We've added some new pages to the Nature's Rainbow web site, including a review of the best mineral lights for our hobby.  Check 'em out...

The...

January 31, 2015

This question always comes up when we're traveling to some far off, glorious glow rock haven.  Luckily, the FAA has published rules that are easy to understand - covers lithium batteries, lead acid, and all other batteries.  Reposted below from this link:

https://w...

Several weeks ago there was a lot of discussion within our Facebook Group about the availability, and where to find, Kokomo 400 LW filter glass. Don Newsome, UV Systems - head of the Fluorescent Mineral Society research chapter (FMS - http://www.uvminerals.org) just se...

January 20, 2015

A friend of mine bought a 385nm to 395nm 100 LED flashlight (presently being sold on Amazon: https://www.amazon.com/uvBeast-Intensity-Flashlight-Blacklight-Commercial/dp/B01CV24OGK).  It is advertised as having 100 high power LEDs and says - I quote "uvBeast - LATEST H...

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