For many years with LED lighting upgrades, it has been a decision of what color temp and wattage level should we get? Those days are over with the Color-Select and Power-Select technology that we are seeing become commonplace in all kinds of LED fixtures and lamps. Eliminate costly returns and save time by going with Keystone's Power Select Color Select option. This will allow you to choose between color temp options like 3500K/4000K/5000K or wattage levels like 45W/35W/25W all with a simple dipswitch.