cool tubes are good but yes the reflectors built into the tube are not verry well designed"i have one of the originals though that just has the 4 inch curve to keep the light in some what of a down ward angle. i bought a cheap bat wing reflector and 8 inch hose clamps and strapped it to the outer lense and it worked a lilttle better,but was still not satisfied.if you still want to use the cool tubes in a larger area they make dual cool tubes.a bulb at each end. they come in 400-600-1000 watts.