you can, go to home depot and buy those round light fixture clamps. its about 8 dollars per each. then 6 bucks for a flourescent daylight spiral bulb. i have 2 DIY lighting + a strip light 48'' flourescent blue. my plants are showing great results, and probably even better when i do the DIY co2. but if you go to home depot, i realized you can think of some cheap DIY lighting.