You can get reflectors if you use more than one environlite, that can hold up to 6 bulbs. Save you buying seperate reflectors per bulb you can get reflectors that hold 6/4/2/Single bulbs. The single bulb reflectors are called bat wing reflectors most commonly. If you have space for more than one but you don't want to install another reflector get a double bulb reflector, the bulbs sit opposite one another so its just an increase in length not necessarily reflector width. Environlite reflectors are a necessity because keep in mind only half of the bulb is hitting the plants so you want to reflect back as much of the top of the bulb as possible. Check out ebay, I reckon you could pick up a double bulb 125w reflector very cheap that would fit perfectly inside your space, assuming your just using the stand alone bulbs right now.