If you mean car HID as in motor car headlamp bulbs, you will have to check the colour rating.
Then it's a matter of comparing lumens and taking your choice.
Personally I would go with 6400K CFL for veg and add the HPS for flower.
Im using a 150 watt hps and it works really well. Hps light rays penetrates the leaves unlike cfls. My plant is over 4 foot tall and its budding all the way down at the very bottom. i think hps is the best way to go
Im using a 150 watt hps and it works really well. Hps light rays penetrates the leaves unlike cfls. My plant is over 4 foot tall and its budding all the way down at the very bottom. i think hps is the best way to go