This advise works for me too. I usually start putting them out for doppled sunlight once they have at least a true second set of leaves. This is based on the fact that my daytime temps are mdi-60's to mid 70's. After a week of doppled light I start giving them direct sunlight for about 2 hours at a time. Remember that they will need watering more often, once they are outside. I learned this the hard way.
Save the panet... it's the only one with peppers.