If you want a light to fit your 24x24'' space for the whole grow, I would recommend our TS 1000, it can cover 3x3 space in veg and 2x2 for flowering.

Real-life experiences and feedback can provide valuable insights into the performance and suitability of different LED grow lights. All our packages are shipped with plastic foam to stuck the light and keep it safe; and without any labels “grow lights”, “grow tents” or brand name mentioned on the packages. The lights have even distribution and an insulating material covering them, making the device suitable for humid growing environments. With a 4'' inline fan rated for 205CFM, an activated carbon filter with Australian charcoal, and a knob controller applied to allow easy switching and adjustment of the fan speed, the Mars Hydro 4 inch inline duct fan and carbon filter combo offers you everything you need to set up the ventilation in a grow tent. The reflector on the TS600 is a patented design by Mars Hydro, and it can effectively gather light dispersed in all directions to improve the light intensity and help plants absorb more light.Currently I have a 250w HPS bulb set up with a cool tube, but since the beginning of my grow Ive been having heat and humidity issues in my tent, all deriving from my lacking ventilation system. You can get by with 25 watts per sq ft with today's best LEDs, but closer to 30 is usually recommended. However, if you’re experiencing high temperatures inside your grow tent, you can consider adding some small fans to your tent to improve air circulation and help dissipate heat.

Please note that some LEDs like those on the current Mars Hydro FC and Spider Farmer SE grow lights are able to operate at very close distance to plants, such as 10 to 14 inches. Say your grow light manufacturer states that your grow light emits 1000 micromoles of light at 18 inches above the plants. For the safety I did not list any close distances on the chart above because it only applies to a few grow lights.The TS600 is 100 watts, and the TS1000 is 150 watts, so you'd get either 25 watts or 37 watts per sq ft.