travelrider

Has anyone used these? How bright are they? The reviews would have you believe they light up the whole world but they are only rated at 15 lumen (which if I'm not mistaken is only a 1 watt incandescent equivalent). I'm not looking for "light up the world". I am wondering if one or two of these on each side would light up the floor just enough to see without being obtrusive or overly bright. I'm thinking two on each side in the front, four in the back (two hidden under each rear seat), and one in the center console. I don't care about flashing lights, pulsating lights, and all that other bling.

https://www.superbrightleds.com/more...Specifications

travelrider

Not one person has used these things, huh?

JMF-150

the are decently bright.

travelrider

Wow! Someone responded! Thank you.
I'm hoping they're actually just barely bright enough to provide 1 or 2 lux of illumination of a floorboard area at night -- and not be distracting. Most people, in my opinion, over-do the ambient lighting brightness in their vehicles.

aces25

It's just one 5050 SMD, so it won't be that bright at all. If you're up for it, you can buy strips of these on Amazon or eBay for cheap and solder on your own leads as necessary.

Like these:
I will say I'm a big fan of superbrightleds.com. I've always had good buying experiences with them. Their color descriptions are much more accurate than eBay or Amazon listings.

techrep

iTrader: (1)

You see where that Quarter was made ... That's where you want to buy you LED's from.

RogueGT

You can calculate watts from lumens and luminous efficacy. Lumen and watt units represent different quantities, so you can't convert lumens to watts.
P(W) = ΦV(lm) / η(lm/W)
So
watts = lumens / (lumens per watt)
or
W = lm / (lm/W)


From the two variables you have you couldn't calculate watts without luminous efficacy.
Anyways...since we have forever been dependent on incandescent light it may be easier to find an incandescent bulb of 15 lumens and compare that to the 15 lumen LED. Because one thing I am sure, lumens = lumens.

schmart

I've not used those specifically, but I have been following a flashlight forum (candlepowerforums.com) for several years and learned a lot. Trying to take information from there and compare it to something you can relate to. First, just as your hearing isn't linear with sound volume, your eye isn't linear with lumens. In other words, doubling the lumen output doesn't make things appear twice as bright. Secondly, it seems most vendors play specmanship, especially with lumens. This can be in from showing only initial brightness, or ignoring losses in transmission. For instance, MagLight says their original 2AA incandescent flashlight put out 15 lumens from the bulb. However, due to losses in the reflector and the glass cover, most measurements show closer to 5 lumen usable.

The same people making measurements above say a 2D maglight incandescent light has about 35 to 40 lumen.

Finally, that die has no focusing mechanism so the light is going to be a very wide flood beam. There may or may not be a reduction in the output as the light heats up. However, it is a good bet that the brightness will be similar to what a mini-mag light would have. considering you don't want the light to be overly bright, I expect you would be happy with at most 2 of the proposed lights.

--Rick