Wiktionary
n. An incandescent lamp containing a small quantity of halogen (usually bromine) to reduce deposition on the glass
Wikipedia
A halogen lamp, also known as a tungsten halogen, quartz-halogen or quartz iodine lamp, is an incandescent lamp that has a small amount of a halogen such as iodine or bromine added. The combination of the halogen gas and the tungsten filament produces a halogen cycle chemical reaction which redeposits evaporated tungsten back onto the filament, increasing its life and maintaining the clarity of the envelope. Because of this, a halogen lamp can be operated at a higher temperature than a standard gas-filled lamp of similar power and operating life, producing light of a higher luminous efficacy and color temperature. The small size of halogen lamps permits their use in compact optical systems for projectors and illumination.
Usage examples of "halogen lamp".
With his right hand, he gripped the halogen lamp so hard that his fingers ached.
And meanwhile the precog's flopping hand had struck something hard and metallic: the handle of the halogen lamp!
For they had realised shortly after Trask deployed them as soon as Millie had seen the Gate, that ball of brilliant white light suspended in the centre of the core that she would scarcely be needing her halogen lamp!
He checked his weight belt, then opened a hang bag and took out a small Halogen lamp and a waterproof purse.
He sat down to put his fins on and took the Halogen lamp Mori passed to him looping its cord round his left wrist.
A hurricane halogen lamp is placed in each corner of the living room.
The halogen lamp jammed into his left eyesocket lit the way for the rest of them.
Zavala reached for a halogen lamp which had fallen within arm's reach.
Deliberately then, he closed his eyes, counted to three, and opened them to watch her reach out and turn on her halogen lamp.
Cleante rummaged in her kit for a halogen lamp and let it play over the vessel's simple, linear but bulky shape.
I snatched up this paper with literally trembling hands and took it to my desk where I turned on my small halogen lamp in hopes of not awakening Big Ramona.
A halogen lamp, with a cone-shaped shade and a flexible metal cable for a neck, hung on a wall bracket nearby.
The Japanese prince landed and strode forward, the solar glare lighting the hilltop like a halogen lamp.
Benar, who had been standing on the transporter circle just behind him, turning on the halogen lamp he had seen in her hand only seconds before on the Enterprise.
But when he angled the halogen lamp so that the strong light fell directly on the back panel of the computer case, he saw the scratch marks around the key lock.