Continuous Lighting is lighting that stays on permanently so the light source stays constant all the time.
Dorr DL-400 LED Continuous Lighting Kit 8 x 10 Watt LED Bulbs
Dorr DLP-820 LED Continuous Lighting Kit
Dorr Digital Continuous 5500K 4x24W Lighting Kit
Dorr H75 Repro Stand Lighting Kit
Reflecta Tripod Visilux Steady light Silver/Black