I decided to see if there is any power loss using the Godox H600 remote head versus the AD600. Both use the same bulb. The test was shot at 1:1 power for both units, 1/100th shutter speed, ISO 100 and measured with a Sekonic L-358 light meter. Here are my results:
- AD600 f20
- H600 f18
So this shows that by using the H600 you will lose 0.33 (1/3) stops of light. Not much and it will be up to each user to decide if the remote head’s lighter weight trumps a third of a stop loss of power.