It adds up -[ HMM ]-

A LED light bulb (technically a lamp), used as a replacement for incandescent light bulbs used in the instrument panels of older vehicles. I powered this 12-volt lamp at about 6 volts to reveal the three small LED elements within each of the five chips on the lamp, for a grand total of 15 tiny electronic light sources glowing brightly at full power in place of one conventional filament.

 

After I posted this, I realized the filament structure of an old incandescent 16mm projection lamp would have been a better subject. Oh, well. :(

Done