Bell 60543 6.6W LED Dimmable GLS Opal - ES, 2700K 810lm. The most cost-effective way of upgrading inefficient lighting. The foundation of LED Lighting (the SMD Candle, Round & GLS) are lamps that the market has become heavily reliant on over the past 10 years. Our LED GLS comes in 4 different wattage options, Clear & Opal with Warm White, Cool White or Daylight output.