Sunspots reset restoration time back to 5 seconds when current restoration is higher than 5 seconds. This is easily replicable with throwing hammer & Ember of Empyrean fragment. 1. Proc sunspot with throwing hammer final blow. 2. Enter sunspot to gain restoration for 5 seconds & pick up throwing hammer. 3. Get another throwing hammer final blow to proc Ember of Empyrean, gaining extra time for restoration. 4. Enter any of your sunspot afterwards & your restoration is reset back to 5 seconds. Why even use Ember of Empyrean as it reduces resilience by 10 points. This might also apply to Radiant.