I was wanting to get a bulk lot of small LED lights similar to Basic LED - 5mm Yellow. I want to put them in balloons so that the balloons appear to glow in a dark environment, so I have a few questions:
Would the heat produced by these lights be likely to burst the balloons? I understand that most LEDs produce little to no heat.
Is there a decent and inexpensive alternative that have a power supply "built in" or attached? (so we dont have wires running from the balloons). Failing this is there an alternative that just need a small battery to be connected?