Cant tell from the pic, but, the back of the reflector by the base of the bulb is non-existent almost, 3 pins hold the reflector to the bulb without tape. what I want to know is will this reflector work or is leaving the bulb bare and just having a white peg board base to reflect off of better or is this.You need a couple of tiny holes to let the excess heat out, polish it up, but it could be well to small until you try it out, but keep a small fan in there too, plants gotta breath Yo ...lol
I must have not explained myself ... There will be an array of 6 of these , the original design was for flood type bulbs,, then flood type bulbs were unavailable, so i got 6x 55 watt spiral cfls mounted vertically and DIYd these reflectorsBetter not piddle about with one reflector this can be done later ...look into constructing a CFL array of 6-8 lights, many about or google, some great peaces out there too