The Warmlite WL43004YW is a white 9-fin oil filled radiator with a maximum 2000W output, designed for portable supplementary room heating. Warmlite's structured specifications list three power settings of 800W, 1200W and 2000W, with an adjustable thermostat for temperature control. The oil-filled fin design provides heat without the forced airflow of a fan heater, while switch controls and a power indicator keep operation simple.

For easier movement between rooms, the radiator is mounted on easy-glide castors and includes mains-lead storage for tidier handling when it is not in use. Warmlite also specifies an overheat protection system and describes automatic switch-off if the unit is knocked over. The manufacturer's page contains an internal discrepancy because its overview text says 800W, 1000W and 2000W while its specification table says 800W, 1200W and 2000W; the structured specification values are used in this listing and the conflict is flagged for review.