This page has a spectral curve - spiky as you might expect. If your main goal is to match color temperature for surround lighting, almost any of the high CRI tubes probably will do. If you want lamps per international standard for viewing output, then likely none of these will be guaranteed. -----Original Message----- From: colorsync-users-bounces+waynebretl=comcast.net@lists.apple.com [mailto:colorsync-users-bounces+waynebretl=comcast.net@lists.apple.com] On Behalf Of Roger Breton Sent: Sunday, August 05, 2012 12:53 PM To: 'José Ángel Bueno García' Cc: colorsync-users@lists.apple.com Subject: RE: "Hardware Store Tubes" Jose, Thank's for the additional information. I wonder about the graph of the SPDs though? The width of the bar does not say much about the shape of the light, which should be a little more "spikier" that what they show? Still, I'd like to find detailed information on these lamps. Best / Roger -----Original Message----- From: José Ángel Bueno García [mailto:jbueno61@gmail.com] Sent: August-05-12 1:25 PM To: Roger Breton Cc: colorsync-users@lists.apple.com Subject: Re: "Hardware Store Tubes" Hello Roger: "Helps With Calcium Absorption.", and "All Birds indoors Need Some Type Artificial Lighting." CRI 96, 95 or 98 for 5000, 5700 and 6500º Kelvin respectively. And a graph of SPD http://www.mmlights.com/Lumichrome%201XZ.html As Dan said, the Philips tubes are cheaper. Jose Bueno _______________________________________________ Do not post admin requests to the list. They will be ignored. Colorsync-users mailing list (Colorsync-users@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/colorsync-users/waynebretl%40comcast... This email sent to waynebretl@comcast.net