Here is my info that i have saved in a MS Word document since I am asked about this all the time:
Continuity lamp current and firing current tests.
I tested several controllers and lamps/LEDs/power sources. Let’s start with the Estes E controller and a fresh new Electron Beam controller from a new launch set, that way we could see side by side comparison of the effects of the 15 feet of thin launch leads vs. the 30 feet of thick launch leads even when they use the identical power source of 4 AA alkaline batteries.
I started by testing each battery and they produced 1.59 volts individually. I then installed them in the controllers and tested the voltage delivered to the micro clips when you arm and hit the Launch button.
Electron Beam: 5.9 volts
Estes E: 6.3 volts
Interesting – less resistance in the Estes E controller.
Now for the current tests. I connected the micro clips to the ammeter and measured the current when armed (continuity lamp only) and when the Launch button was pressed.
Electron Beam:
Continuity: 190 mA
Launch: 2.75 A
Estes E:
Continuity: 210 mA
Launch: 3.72 A initially, dropped to 3.65 A and then rose to 3.75 A as testing progressed (battery heating effects?)
So, obviously the Estes E controller can deliver more current to the igniter. The thicker wires have much less resistance, so they more than make up for the longer wires.
Next a Quest controller (the beeping electronic type) with the internal 9 volt alkaline battery. Battery tested at 9.2 volts. Voltage at the micro clips was 9.2 volts.
Continuity current: 12.5 mA
Launch current: 3.3 A dropping to 2.9 A after holding the button for 5 seconds. After a rest period it returned to 3.3 A.
Estes Electron Beam controller with LED replacement lamp (pinball machine triple LED in bayonet base rated 6.3VAC)
https://www.pinballlife.com/index.php?p=product&id=1174&parent=192
Continuity tests:
4 x AA internal alkaline batteries: 37 mA
Battery compartment bypass to a 9 volt battery pack (6 x C): 75 mA
Battery compartment bypass to a 12 volt lead acid scooter battery: 115 mA
Estes Command Control controller continuity tests:
7.2 volt internal battery pack: 30 mA fluctuating (from electronic circuit/beeping)
2 x 7.2 volt = 14.4 volt internal battery packs: 70 mA fluctuating (from electronic circuit/beeping)
Estes Astron controller with 30 feet of 18 ga launch leads continuity test:
12 volt lead-acid scooter battery: 110 mA
Estes Pro Series II controller with 6 C alkaline batteries:
Safety key only: LED lights up with 7.5 volts at the clips and 29.8 mA
Safety key and arm switch: LED lights and buzzer sounds with 8.45 volts at the clips and 44.5 mA
Safety key and arm switch and launch switch: 9.09 volts at the clips with 3.17 A (with 2 inches of 31 ga nichrome wire I measured 2.35 A and it glowed red hot).
Excellent source Fred, and really cheap. Do you know what the current draw is? They also make a single led version as well which would be about 20 ma max.
Bob