internal reflector

I must have missed this, but apparently UVL is making T5 bulbs with internal reflectors... http://www.marinedepot.com/34%22_UVL_T5_V_HOR_Bulb_VHO_Fluorescent_T5_Light_Bulbs-UV_Lighting_Company_%28UVL%29-UF4345-FILTBUT5VH-vi.html Has anyone tried them? I'm curious if anyone has compared the t5...