resistor socket
Actually there comes out to be a little problem
when u connect one common resistor, what actually happens is, all led's now appear in parallel, parallel connectin of led's is usually not recommanded.
this is because the led with lowest voltage turning on capability will turn on and most of otherz will turn off.
even in led torches they are not recommanded to be connected in parallel
OR IN SHORT WORDZ
IT HAS BEEN EXPERIENCED THAT CONNECTING LEDS IN PARALLEL WILL CAUSE ALL LEDS NOT TO TURN ON WITH EQUAL INTENSITY OR NOT EVEN TURN ON
more over if any u have connected 5 led's in parallel and 4 of otherz r burnt out forexample, then last one will automatically burn out due to ur circuit design i-e. u have connected one low value high power resistor.
last thing,
if u wanted to get ur work as short as possible, then use 7 resistor socket, that is usually used in microcontroller circuits in which we have to connect 8 led's all wid resistors, we use 8 resistor socket.
hope u can understand,
itried my best to help u
regards
mosfets.bjt