**Product Specifications:**
**Brand:** FSL
**Usage:** Suitable for constant voltage only. Not suitable for environments with sound control, light control, or voltage variation.
**Socket Types:** E27 (commonly known as large screw mouth) and E14 (commonly known as small screw mouth). E27 socket diameter is approximately 27mm, while E14 socket diameter is approximately 14mm.
**Lighting Application:** Suitable for general lighting in homes (E27) and decorative lighting such as crystal lamps (E14).
**Light Source:** LED light source with five major innovations - long lifespan, bright and soft light, high color rendering index, energy-efficient, and flicker-free.
**Warranty:** Three-year warranty with official commitment from FSL.
**Flicker-Free:** Tested to be flicker-free for comfortable viewing.
**Product Structure:** PC optical cover, LED chip, constant current driver, aluminum heat-dissipating lamp body, standard E27 socket.
**Product Parameters:**
- Heights: 239mm, 205mm, 172mm, 143mm, 128mm, 118mm, 94mm
- Diameters: Φ135mm, Φ120mm, Φ100mm, Φ80mm, Φ70mm
- Wattage: 52W, 42W, 32W/25W, 20W, 16W, 10W, 5W
- Product Name: LED Column Bulb
- Light Color: 6500K
- Socket Type: E27
- Beam Type: Semi-Focused
- Rated Voltage: 220V~50Hz
- Body Color: Matte White
- Material: PC cover + PBT aluminum-clad body
- Color Rendering Index: 80Ra
**Applicability:** Suitable for a wide range of applications including factories, workshops, supermarkets, warehouses, desk lamps, and residential lighting.
**Details:** High-quality LED lamp with high brightness and good color rendering. FSL LED lighting products are designed for energy efficiency and environmental friendliness.
**Additional Features:** FSL LED chips with good light efficiency, low light decay, and long lifespan. PC engineering plastic lampshade for high light transmission and durability. BPZ1400 PVC lamp body with bright surface plating and strong durability. International standard E27 nickel-plated lamp head for good conductivity.
(Note: The specifications are based on the provided information.)