Power up to four 1W or two 3W high-power LED's. Delivers accurate constant current required by most high-power LEDs, high efficiency due to switch mode principle, built-in rectifier for easy connection to AC source. Compact size, short-circuit protected, no heatsink required. Also suited as fixed current NiCd/NiMH battery charge circuit. For home, disco, stage, education, architectural lighting, science projects.