ballast lamp

ballast lamp

[′bal·əst ‚lamp]
(electricity)
A light-producing electrical resistance device which maintains nearly constant current by increasing in resistance as the current increases.
References in periodicals archive ?
Ballast Luminous Efficiency = (Total test ballast lamp arc power/Ballast input power)x?
Tenders are invited for Replacement Of Burnt Out Ballast Lamp And Ignitor In High Mast Of Golf Colony And Replacement Of Burnt Out 150W Lamp And Choke For Office Bldg And Painting Of Existing Pole In The Office Bldg At Dgms Dhanbad