... the new incandescent light bulbs with high brightness. Life is long, etc, welcome new and old customers coming g the product ... is made of quartz glass with high lightness and long life span1. Advanced constant current driver.2. Professional thermal management ... the beam, no mercury.6. Anti-shock, anti-moisture.7. Long lifespan, higher than 20,000Hrs.8. CE, RoHS certified. Energy-saving ...