Quick question regarding lighting

Im on my first grow, all is going well so far. Got 3 WW & 1 Afghan Kush under a 1000w hps & im about 4 weeks into flowering, the AK is about 3 in. from the 1000w, its aircooled and not hot at all, hasnt showed any signs of burn, is this ok? Thanks ....stoned.

If you can put your hand there without getting burned, your good to go.

1000w...... why risk burning. I woud raise the light 6 inches.

most the time with 1000w setups, they use 18''-24'' of space.