When is more power delivered to a light bulb

When is more power delivered to a light bulb, just after it is turned on and the glow of the filament is increasing or after it has been ON for a few seconds and the glow is steady?

As, the voltage is applied across the cold filament, when it is first turned on, the resistance of the filament is low, the current is high and a relatively large amount of power is delivered to the bulb.
As the filament warms, its resistance increases and the current decreases. As a result, power delivered to bulb decreases.