2x4 LED Doorframe Retrofit Panel feat. Power Select & Color Select. 45/35/30W, 120-277V Input, 3500/4000/5000K, 0-10V Dimming, Backlit Design. Gen 2. https://www.lightbulbwholesaler.com/Keystone-KT-RKIT45PS-24PD-8CSA-VDIM-G2