you mean 100 watt incadescent bulb? if yes......the answer is no....make some research on the net for Mercury Vapor bulb.....it comes in 100 watt as well.....you must use it along with an HPS bulb....on it's own can't really achieve much due to low lumens emitted...plus the uv rays it emits are harmful for the skin and the plants...for this reason it is wise to use it only a couple of hours a day.....only for plant optimization....not for growth or vegetation.....another thing, with incadescents you should not expect much as they are high in wattage but low in lumens....ie....to get 58000 lumens (my 400 watt HPS) with incadescents you will need around 44x100 watt bulbs....that is a total of 4400 watts.....with 4400 watts of HPS you can grow around 90 or more plants to full maturity....plus the HPS provide more or less a full spectrum light, can be used all around the plants' lifecycle while the normal incadescent bulbs can be used maybe only for vegetation aka the first 2-4 weeks of the plants' life.....i hope i am right in everything i said so far and have not confused you......anyway in the case that you speak abou fluorescents, common use fluros, you can use them for vegetation......however there is a new generation of fluoros called envirolites....they come in two different types...one rich in blue spectrum (for vegetation) and one rich in red spectrum (for flowering).....the good thing about these bulbs is a:that with 125 watts of output, they reach almost the lumens emitted by a 400 watt MH (Metal Halides:rich in blue spectrum, used for vegetation) which makes them a good alternative for vegetation and b: they put out minimal heat and thus you can approach them closer to the plants without having the fear of burning the plants.....ie the minimal distance for an HPS lamp is one foot/30cm (250 watt) and the number goes right up as the watts increase ie at least two feet/60 cm for a 1000 watt HPS.....hope that info helped you
newgroweroldsmoker Reviewed by newgroweroldsmoker on . more thc does here know how i can increase tha amount of thc in my plant? Do i need to put sum kinda nutrients in it or sumthin else? Rating: 5