The title basically states the new product, but my question is, can this lamp be used in the older style black Altman 360Qs that have reflectors made before ~1999 (pre-superreflector) and blue lenses? I am asking this becauase I am tired of the EHGs color temperature that does not match up with our newer inventory of ETC Source Four/ Source Four Jr fixtures. I am assuming this lamp is a safer bet than say the GLD or the HPR which will most definetly burn a hole in the older style reflector. According to the spec sheet, the lamp is a universal fit into any existing fixture using a G9.5 base type lamp and will fit in fixtures that use the GLC/GLA, FLK, or FEL. So this means the altman 360Q (newer models), the Star Par, the Strand SL and Shakespeare, newer colortran units, older colortran units that ran on FELs and several other fixtures that I don't know of. The lamp appears to be a cross in between the filaments of an EHG and an GLC/HPL filament geometry (they took the coiled coil design and flipped it onto a horizontal axis and then wound the coil diamter a little larger). The spec sheet is here : http://www.ushio.com/products/entertainment/h-sph.htm# That is all for now. More information will be available later.