Hello- on Friday I purchased a solar shed light from harbor freight to supplement a little daylight for my hens. I figured that i would give them an extra hour of light in the am and an hour in the PM since i am in NE and the days are starting to get shorter. It says that the light is 4 watts with a fluorescent light with output equivalent to 30 watts incandescent (seems like 10 watts on the output)-not bright at all. Had my husband hook it all up and i turned it on last night, and it didn't seem like 30 watts. My questions are: How many watts lightbulb do the hens need to make a difference in supplementing light due to the natural light change? and.. Is it possible to hook this solar panel up to another light (something brighter-maybe LED)-that connects with the same type of plug? The plug is just like any other adapter. Basically the pannel is recharging the batteries in the light. The pannel is a polycrystalline silicon solar panel. I don't want to add any stress to my hens, but would like to continue getting eggs this winter. They have really slowed down-fast. thanks!