So this is the sort of thing I wanted to make (but spread out over a slightly larger area) but I'll just buy one, it's not worth the trouble trying to try to make.
Definitely not this
It's ok it all sounds too risky and involved now, I just wanted a simply project without dangers or complex equations to solve, one I could test as I went along and work it out as I go more as a learning experience starting with very low power multimetre and aa testing.
I did read a beginner...
Ok thanks. Perhaps I did not read the whole page before I posted a quick reply to that post but I would have have read more later before buying anything and of course tested anything I got with a multimetre then testing it by briefly connecting an a AA battery with a temperature probe I have...
Don't worry after I turn it off I'll come back on the forum to start a new thread about how long it takes light bulbs to cool down, before thinking about touching it. :)
I know it can be dangerous I was just hoping for a simple guide to using a few super low powered remote control leds spread out across more than a metre with other visible leds. Something that everyone would agree would be safe. I wanted some help working out the safety guidelines within big...
Ok thanks.
Oh plug pack means a low voltage output power wall connected power supply not battery pack ie. 12v 500mA, but they are about the same voltage as battery packs.
I thought of using wire with enough in series or parallel to get enough heat dissipation so it wouldn't have to get that...
Thanks for your answers, very helpful. :)
It's definitely looking like nichrome wire is not suited at all to my projects. I definitely don't want 500 degree wire.
I'll look at peltier modules, or ceramic resistors glued with thermal glue to a surface, what surface would be best?
I'll probably...
I just simply wanted some help working out distance and power for safety with low powered ir leds in various different spaced out configurations combined with visible light which I thought was quite a complex problem to work out, not simple to work out at all.
I posted one other thread on this...
Considering the danger with ir leds by themselves is that you can be looking at a bright light and not know it (while it is damaging your eyes all the same), would it be safe to combine low powered (eg. 3mm 20mA 2v) ir (850nm - 880nm) leds next to slightly higher powered (eg. 5mm 60mA) red leds...
Thanks.
I had a few projects in mind (foot warmer, heating a bowl of water to about 30 degrees c, maybe seat back warmer). All with low power 12v plug packs.
Also I want to try making a concrete heat rock with a diy element inside.
The nichrome wire sounds like a good option, I guess I can...
I want to make a low voltage low power heat element, what would be a good material to use?
I was thinking of something like aluminium foil but a bit thicker and able to be soldered.
I want to make a track on a flat surface to make about 6 ohms for my first project.
I can't find information on this type of heat lamp about their ir spectrum wavelength output.
I assume it is mid or far infrared, but does anyone have a rough idea of the wavelength spectrum range in nanometres?
This sort of thing
Ok thanks.
I just wondered if it was glowing red + 80% infrared whether that could be bad.
When during normal use (white) the infrared addition is a much much lower percentage as per the graph (ie. the white light + 10% infrared).
I mean if I used several lamps running at a lower temperature...
Thanks, you are right, however if I lowered it too much that it no longer produced much light your eyes wouldn't know if you are looking at higher than expected output including the ir.
So I hope it works well glowing red because I wouldn't want to go any lower.