About this item

• SUPER BRIGHT, HIGH EFFICIENCY: Usually the brightness of light is measured by power, but actually measured by lumen, the 40w daylight light bulb is 5500lm and divided by 40w to give 137.5 lm∙w−1 luminous efficiency, out-perform others! Plus, 25,000 hour lifetime saves your replacement costs.
• SANSI: The Upgrade 300 Watt LED Light Bulbs provide more rounded looks and enhanced performance, free E26 to E39 adapter can fit different bases.
• **ILLUMINATE YOUR SPACE!**: With a brightness of 5500 lumens and a color temperature of 5000K, this light bulb is ideal for warehouses, basements, barns, gardens, shopping centers, supermarkets, workshops, display areas, and more. Suitable for both outdoor fixtures with protection and indoor locations, this bulb delivers powerful illumination wherever brightness is essential, without the concern of high energy costs typically associated with high lumen LED bulbs.
• FLICKER FREE: LED bulbs might be flickering due to loose or incorrect wiring, a sudden drop in home voltage, incompatible dimmer, or bulb components such as a defective LED driver. But SANSI won't flicker for the last reason, a better power supply will have constant current drivers installed that stabilize the current to the LED by varying voltage, this ensures constant brightness, and SANSI LEDs have drivers installed on the chip inside.
• PATENTED CERAMIC TECHNOLOGY: We solder the LED chip on the ceramic heat sink innovatively, which contribute to faster heat conduction and higher reliability. As common sense, ceramic heat sink is a natural and friendly material, insulation, high thermal conductivity, anti-leakage breakdown, high temperature resistance, no noise etc. Time will not permit more list