Sylvania LED17A21/GRO/B 17W A21 ULTRA LED Full-Spectrum Grow Bulb
The Sylvania LED17A21/GRO/B (NAED 40023) is a 17W A21 ULTRA LED full-spectrum grow bulb with E26 medium base for indoor plant growth stages. Low heat output allows closer placement with less leaf burn risk on standard 120V sockets.
Key Features
17W A21 ULTRA LED grow bulb
Full-spectrum output for indoor plant growth
E26 medium base, 120V
~260 lumens (grow-optimized spectrum)
Low heat for closer plant placement
Frosted A21 form factor
Suitable for germination through flowering stages
Long-life LED vs. legacy horticultural lamps
Specifications
Item Number: 40023
OEM Model: LED17A21/GRO/B
Brand: Sylvania / LEDVANCE
Type: A21 ULTRA LED grow bulb
Wattage: 17W
Lumens: ~260 lm
Base: E26 medium
Input Voltage: 120Vac
Shape: A21
Finish: Frosted
Application: Indoor horticulture / grow
Compatible Loads
Standard E26 120V sockets
Tabletop and fixture grow setups rated for A21 lamps
Compatible With / Replaces
Legacy incandescent grow bulbs
Less efficient compact grow lamps in E26 sockets
Common Applications
Indoor houseplants
Seed starting and hobby grow tents
Supplemental desk/shelf grow lighting
Why Buy from Sylvania / LEDVANCE?
Full-spectrum ULTRA LED grow design
Standard A21/E26 convenience
Low heat vs. legacy grow lamps
Trusted Sylvania / LEDVANCE brand
Why Buy from LeanLight?
Fast & free shipping on every order (ships from Georgia)
