At the risk of being redundant, I'll mention an option other than returning your lights because of bad tint. Those who know me, know that I'm VERY concerned with tint. I was a professional color printer for years and any hint of green or cyan tends to make my skin crawl.
When I got my first ZL, the original SC600 (version 1), I was horrified by the tint of the cool white XM-L. It was yellow in the center with a purplish outer ring
, arrrrghhh. BUT, I loved everything else about the light, how it felt in my hand, the fantastic UI, and that wonderful electronic side switch. I remembered reading somewhere on CPF about a guy who used filters on his lights to change the tints, so I found that thread, ordered some filters, and immediately found that I could change the tint on my new SC600 to not only acceptable, but very close to ideal.
Since then, I went back to all my old lights and filtered them, and have done so with every new light I get. It does cause a tiny bit of output loss, but with today's high powered lights, I've found it's not that big a deal, especially compared with the satisfaction I get when using lights that I've custom tinted.
It usually takes me about a week to find the right filter for a light, playing with the various tints, leaving one on for a few days, then taking it off and trying another, but to be honest, for me, it's part of the fun. I cut the filters to size and use a small piece of clear double sided Scotch tape to adhere the filter to the glass cover. For lights that have a bezel that unscrews it's even easier, just place the filter on the inside of the glass cover.
It's cheap, it's easy, and it's completely reversible, and I've never found a light that I couldn't use a filter on to get it close to where I wanted it.
In any case, here is a link to a place where you can buy these filters:
http://www.stagelightingstore.com/Stage-Lighting-Store/Swatch-Books
I used to use a place called LEE FILTERS, but they don't seem to sell the swatch books anymore, so Rosco seems to be the place now. I'm not sure which of those swatch books to order, but at those prices you might try several. It looks to me like the "Roscolux" and the "E Colour" swatch books might be the way to go. When I ordered the LEE swatch books I got 2-3 at a time to save on shipping. Each swatch book contains literally hundreds of 3"x 1 1/2" swatches, and each swatch is generally good for 2-3 lights, but you'll see that most of the swatches won't be used, and you'll probably end up using the same filter for most of your lights, so having several swatch books makes sense so that you can use that same swatch from each book.
I use mostly the 1/8 minus green, or 1/4 minus green swatches (which look magenta). These typically get rid of that green/yellow tint. For a warm light that is too warm, I've used a Lavender filter, which cools it off bit.
By the way, a bonus that you get with these swatch books is that they usually have quite a few swatches of diffusion material, from light to heavy...... giving you lots of choices for changing the actual beam of light if you like, and they work great!
Just so you understand, I'm not trying to excuse manufacturers from their responsibility for giving us LEDs with better tints. I would love to receive a light with the "perfect" tint, which for me would be a light without any tint at all, just pure white light. However, I've finally come to the conclusion that my chances of that happening are pretty slim.
Luckily, I've found peace and contentment by using this easy and inexpensive alternative. Have fun
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