... (up to 90LM/W), excellent in brightness. NICK Spark LED PL Lamp, Smart Series1, innovative design, smart and functional; high efficiency ... voltage, DC low voltage output, to be safe and practical; G24 base, revolvable at 180 degrees, to satisfy different illumination requirement ... , sparkle your green and quality life. Spark Energy Efficient LED PL Lamp, G24 Lamp, Smart Series