Need someone to do some lumen testing for me

[JETactical]

I know I am new to the forum but rest assured I am serious. I need someone to quote me what they would charge to test the lumen output of 5 flashlights that I am beginning to brand. They will be JETactical brand lights. I hate reading claims of 800-900 lumens when I know they do not put out that many. I want to be honest and up front with my customers. If they only put out 50 lumens I want to tell them that. Like I said I need an accurate measurement of 5 lights and also how long they burn until they reach 50% power and maybe 25% also. Please PM me with quotes. Thanks guys.

P.S. I am just a little guy like you trying to live the american dream. We spent almost all of our capital on our first order so take it easy on us haha.

 

[SemiMan]

I know I am new to the forum but rest assured I am serious. I need someone to quote me what they would charge to test the lumen output of 5 flashlights that I am beginning to brand. They will be JETactical brand lights. I hate reading claims of 800-900 lumens when I know they do not put out that many. I want to be honest and up front with my customers. If they only put out 50 lumens I want to tell them that. Like I said I need an accurate measurement of 5 lights and also how long they burn until they reach 50% power and maybe 25% also. Please PM me with quotes. Thanks guys.

P.S. I am just a little guy like you trying to live the american dream. We spent almost all of our capital on our first order so take it easy on us haha.

Well as a little guy, you could take a stand and NOT post the almost completely useless and meaningless LUMEN numbers, but instead provide a beam distribution plot, i.e. candlepower over angle... far more useful for what a flashlight actually does. This would be similar to an IES report for general lighting.

Semiman

 

[DaFABRICATA]

Try contacting member MrGman.

He has an integration sphere and may be able to help you out...just a thought.

Good luck with your lights!

 

[Ken_McE]

Hey, take it easy on the new guy. Lumens won't tell you the distribution of the light, but some of us like having simple basic facts to work out from.

He needs someone with an integrating sphere. We have people here with home made integrating spheres, but I'm not sure those are precise enough for his needs. The commercial ones, and the commercial testing places may be too expensive for the size of his project.

If you think he should go with IES type info, he'd probably be grateful if you gave him a link to a sample of such info, or someone who'd done that and posted it here, no?

 

[Linger]

Yeah by all means ask around. I'm just unsure what products the will have on offer if those involved are coming at it from so far outside. 4Sevens gives lumen numbers and must test them.
Otherwise efficiency numbers, drive level, emitter type, will be great to know. Peak has their own 'candella' calculation and may spare the new competitor a bit of time on how to calculate the basics?
Output is one of the most basic functions of a flashlight.

 

[SemiMan]

I would take it easy on the new guy, BUT, he is doing this for commercial purposes hence, no taking it easy will occur... ;-) ... heck, I should be charging for that little bit of marketing advice on how to differentiate himself.

Semiman

 

[csshih]

He has an integration sphere and may be able to help you out...just a thought.

sadly, MrGman no longer has a sphere, nor access to one as the optics lab is(or has already?) moving away.

I would take it easy on the new guy, BUT, he is doing this for commercial purposes hence, no taking it easy will occur... ;-) ... heck, I should be charging for that little bit of marketing advice on how to differentiate himself.

if I charged for my advice and services, I'd have quite a few more flashlights than I have right now.