Results of experimental investigations of coaxial and planar barrier-discharge-pumped excilamps are presented. An average radiation power of more than 2 W has been obtained for efficiency of 2.6% with the use of a XeCl excilamp. It is shown that the radiation efficiency of the barrier-discharge-pumped excilamps increases with the use of sinusoidal pumping pulses with durations of several tens of microseconds. The excilamps with two emitters pumped by one generator radiating at different wavelengths have been tested.