well then hes an idiot. owning a store doesnt mean the guy knows shit. there are hundreds of dispensary owners in california that were nothing more than burned out potheads before prop 420 and 215.all they know is how to light a joint or fire up a bong, and they dont know shit about shit when it comes to growing , processing,curing weed, nor do they know a damn thing about customer service.
just like rusty crutch said, unless your lighting is putting out more than the sun, then your OK. there isnt a light bulb on the PLANET in a visible spectrum sold for human lighting thats going to put out such high intensity light thats its going to kill your plants unless you get it so close it burns the plants leaves. you could have 1000 1000 watt bulbs in a room and it wouldnt be the LIGHT INTENSITY that would kill your plants, it would be the heat from the lights baking your shit to a literal crisp. i have a friend who grows in a 40ftx40ft shop and he has 10 1000w metal halide bulbs circling the room and they havent killed his shit yet. he DOES have fans that run and vent the room constantly, and if your in there too long, you have to put on sunscreen or you will get a sunburn, BUT it doesnt bother the plants much, it does turn my transitions lenses in my glassess dark as fuck though soon as i walk in the room