Feniex Focus Episode 2 // Measuring Light Intensity for Emergency Vehicles 

She spoke in technical terms for seven minutes and never missed a beat. Good video!!

Top Notch Technical Info. Great Graphics. Attractive Articulator! What's not to like?! 😃

Wow. Spent about 20 min looking around for videos to better explain lumens and foot candles. Came across this video which provided AWESOME basic info AND I learned about candelas which I was a nice extra tid-bit. Didn't include foot candles but that was okay. Instead, got a great explanation of lux, lumens, and candelas with graphics starting at 1:50 to 2:50. Thanks!

good presentation easy to understand,

I enjoy these videos, I was gonna go to a cheaper brand of emergency lights but after seeing how much feniex cares about educating potential buyers AND stays impartial by said "if you're not buying feniex please do your research" I find that AWESOME. Love this company

this was extremely informative. thank you very much

She's smart, the background research is amazing

Thank you for the explanation !!!!!!! - Studying for my ARE's and you made this so easy to understand

This was surprisingly Useful and Awesome !!!

What a great video. Thank you. Keep it up

love the way you explain things

Very informative I like this! I made the mistake of buying STL light products and regret every dollar I spent there, not honest or good quality at all. Feniex looks like im giving you a try!

Great concept

I have to admit it was a great video

Great explanation

Katya, excellent video. It's so informative I could probably use this for Children's E/I programming on TV! You mention in the video that emergency lights must compete with light from the sun. This is true during the day but at night, when there is no sunlight, bright emergency lights can overwhelm (blind, dazzle, distract) drivers --making conditions less safe. This is especially true during rain and fog and with elderly drivers and those whom wear eyeglasses. There is a well-documented evidence of nighttime accidents resulting from light bars being too bright, I would recommend Feniex incorporate day/night selections into ALL your lighting products. Dimming should be at least 50% in the "night mode". The control could be either activated manually by the operator or varied automatically with a photocell. There's an old saying, "less is more". Sometimes less light means more safety. ..Chris..

this was awesome

This is genius, who would of thought that I would find this info on RU-vid?

Good video.

Great product without a shadow of doubt but definitely need more UK suppliers (and promotion!). I believe there is currently only one UK supplier based in Scotland but it's not listed on your website.

Pretty cool

Idea for next Feniex Focus: The Best Emergency Vehicle in 2015!

I mean... it's a great vid, but I'm literally dropping a few tears here, because my brain hurts. Lmao.

awesome

Beauty with brain

Also would it be possible to create a video of how you precisely calculated Lumens when factored in all of those variables you did when comparing both flashlights. I am about to post a RU-vid video on comparing the "Effective Lumens" between a high quality Mirimoto's H11 55W HID headlight kit and a high quality VLEDs 45W 9006 LED headlight kit. Creating similar tests would be soooo awesome 👍😎👍

So I heard that the apollo and corba leds were set to 900 lumens. Were fusions bumped up to 1000?

I have been trying to find the differences between between these three terms and you have made it super clear to understand but I do have one question. Isn't Candelas simply the measurement of light intensity coming from the source of light itself instead of the "total amount of light given at an angular point" (you really threw me off when you defined Candelas as that :S)

Hello Katya, OK even with an understanding of lux, candlepower, and lumens I have a simple question. At normal distances of concern, lets say 100 feet, 300 feet and 500 feet, would a colored lens and clear leds, or clear lens with colored leds "appear" brighter to the human eye?

can u give best help .i have small playground .area 105*68 meter.how much pole and spotlight i need

ohh Feniex :)

helpful

Where does the quad light bar fit in?

When lumens are used in a candela per lumen ratio you get the most information about the shape of the beam, intensity of the light and brightness at a distance. This ratio also gives you the throw, or farthest distance a human sized object is visible. So (numbers simplified) a 500 lumen light with a 30 degree beam angle may have a cd/l of 8, but the same light with a reflector giving a 15 degree beam angle will have 16 cd/l and twice the candela, giving a longer throw from the same output. Usually the higher the cd/l, the more "throwy" the light will be and have a tighter, smaller beam. Also, ALL lumen numbers advertised are 10-20% higher than reality, but some are quite laughable. $12 might get you 300 lumens but you can find that 90,000 lumens at the same price on Amazon is pretty common.

Awesome video now I have a question for you im a volunteer firefighter and im working on getting lights for my pov but im at a toss up between visor or regular roof mount light bar which is better and which would be mor visible

Katya, Is it possible that two different light bulb which produces same amount of Lumen but different LUX? Example - Bulb_1(9 watt ) and Bulb_2(9 watt) both produces 630 Lumen but Bulb_1 produce 100 LUX and Bulb_2 produce 200 LUX ? And Can we make a bulb which produce Sunlight? like morning sunlight.

Oh. I guess I should only use their Lumen rating to compare products from the same brand.

So would a light that has 1k lumens with 35k cd be brighter than a light with 1800 lumens and 24k cd?

I don't think its too bright!

385 Yottawatts 😂

Katya is a Hottie! and a very smart Hottie!

Feniex is bright, should put a dimmer on their lights for nighttime use. maybe a 12v positive that knocks it down 50-75%

2:36 NO you want to be seen from 360 degrees. WOW. this coming from Feniex........... insane. That's the entire reason I have side markers too so cross flowing traffic at intersections can see me as I approach.

What is lumen

One more thing you are very intelligent 🎓 and beautiful 😍 (just pointing that out lolz...no offense) 😜

VERY HOT..

You talking so fast,,slow down ????

Please, there's no Earth Curvature. The Earth is flat.

thanks for scienc but please delete the sound - is disturbing

them beeeeeeewwwwwwwwwwwwwwbbbbbbssssssssssssssssss.....

1:08 : Fail. SMDH. Science people. Please?