Jalapeño peppers

Jalapenos do always seem to take a long time to ripen, though that usually doesn't bother me as most of the time we use them green. Early Jalapeno is uh...an earlier jalapeno that does ripen to red quicker than other varieties I've grown. Lack of heat, not too sure of the cause exactly, could be variety, duff seed, weather conditions, watering schedule etc. I have noticed plants which get less water seem to produce hotter fruit but that's just anecdotal evidence.