Yeah compared to other glowplugs Ive seen. And ive been in RC for maybe 6 years. This plug looks very dim, almost have to put your hand over it to be able to see it. Ive always used hot plugs. Im sure its on its last leg then. I just charged the glowstarter and checked other plugs with it. This plug is from the motor being new through breaking and has about 1.5-2 gallon on it.