DLC Listed 200V+ Light Bulbs from Satco Products, Inc. with a Mogul (E39) Base For Enclosed Fixtures where CRI Range is 80 - 89, Color Temperature (Kelvin) is 4000-4999, Average Rated Life is 40,000 hrs and over, and Bulb Power Type is Ballast Bypass
$583.96($145.99 per Bulb )