I know this isn't what your asking but thought I'd say it. I use landscape lights from Walmart or Home Depot. They will shine to aprox midnight depending on how much sun the solar panel sees. I run two at my feeder for enough light. I have a sniper hog light mounted on my bow but don't need to turn it on when killing them under the feeder. I think the landscape lights are like $15 a piece from walmart. I'm sure wildlife inovations feeder kill light is much better though than this poor man' s set up I run. Happy hunting!