Hi, I have used these bulbs in the germination and veg stages with great success. great on the electrickery. if you are in a cooler climate, overall tent or room temp may need a boost.
they may use those bulbs in food photography due to the low heat and the ability to move light closer to product.
these bulbs have nearly gone completely out of fashion in my part of the world due to LEDs. CFL's dominated the shelves, kicking out the incandescent, now LED is all that is available but incandescent are lingering.