Abstract: A germicidal lamp may include a glass envelope and a UV-blocking coating provided on the glass envelope. An HVAC system may include a duct, evaporator coil banks provided in the duct, a drip pan provided in the duct and below the evaporator coil banks, and a germicidal lamp inserted through an opening in the duct and configured to emit UV radiation. The germicidal lamp may include a glass envelope and a UV-blocking coating provided on the glass envelope, and the UV-blocking coating may be configured such that the evaporator coil banks are irradiated with UV radiation while a substantial portion of the UV radiation is prevented from reaching the drip pan.

Abstract: An end cap and socket system for use with a lamp bulb may include an end cap and a socket body. The end cap may include a first cylindrical portion with a first diameter, and a second cylindrical portion with a second diameter smaller than the first cylindrical portion. The socket may a key portion projecting from a front face of the socket. A adaptor for use with a socket may include a key portion. Alternatively, the end can may include a key disk with a key groove cut into the key disk, and the socket may include a key piece with a key rib structured to couple with the key groove. An adaptor for use with an end cap may include an adaptor body portion and a whole, wherein a contact pin can be inserted through the hole. These keying features are intended to prevent improper coupling between mismatched lamps and sockets or insure that the lamp, when mated to the socket, may be rotated in only one direction.

Abstract: An end cap may include an end cap body that is tubular in shape, an end cap face provided at a first end of the end cap body, a plurality of end cap terminals provided on the end cap face, and a clip notch provided on an exterior side of the end cap body. The second end of the end cap body may be open and structured to receive the lamp therein. A socket may include a socket body that is generally tubular in shape, a socket face provided at a first end of the socket body, a receiving wall extending from an outer periphery of the socket face and extending in a direction away from the socket body, a plurality of socket terminals provided on the socket, and a resilient clip provided on an inner side of the receiving wall.

Abstract: An end cap and socket system for use with a lamp bulb may include an end cap and a socket body. The end cap may include a first cylindrical portion with a first diameter, and a second cylindrical portion with a second diameter smaller than the first cylindrical portion. The socket may a key portion projecting from a front face of the socket. A adaptor for use with a socket may include a key portion. Alternatively, the end can may include a key disk with a key groove cut into the key disk, and the socket may include a key piece with a key rib structured to couple with the key groove. An adaptor for use with an end cap may include an adaptor body portion and a whole, wherein a contact pin can be inserted through the hole.

Abstract: An end cap may include an end cap body that is tubular in shape, an end cap face provided at a first end of the end cap body, a plurality of end cap terminals provided on the end cap face, and a clip notch provided on an exterior side of the end cap body. The second end of the end cap body may be open and structured to receive the lamp therein. A socket may include a socket body that is generally tubular in shape, a socket face provided at a first end of the socket body, a receiving wall extending from an outer periphery of the socket face and extending in a direction away from the socket body, a plurality of socket terminals provided on the socket, and a resilient clip provided on an inner side of the receiving wall.