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Sweet flock there, grateful. With lights and good care, I think everyone of those breeds should be able to produce some eggs this winter. It's always good to start off by examining your chickens for condition; take each individual bird and feel them over for general weight issues. An overweight bird will not lay as well and certainly an underweight bird will not either. Now is an excellent time to make sure that your feeding technique is working for your flock and that they are in prime condition for the cold winter months, when their egg making will be regarded by their bodies as a secondary goal to staying warm and healthy. Then, look them over for any sign of creepy crawlies. Flip their behinds up and move the feathers away from their vent and watch for any mites scattering away from the light. Mites and lice sap the hens energy also and can cause a drop in egg production.
Are they just coming out of their molt? They may benefit from an increase of protein in their diet for a little while as they try to vamp everything back up and get their egg laying strength renewed. I like to toss high protein cat food out to the girls periodically as they are going through their molt. But this is just a short term boost to their diet, I guess long term it can cause trouble. Remember, if you find that they are not in the condition that they should be in and decide to try a different food, introduce it gradually! I have had to learn this lesson the hard way (more than once. I know, duh..).
THat's all I can think of at the moment, but I'm sure there's more good advice coming your way!