Product data sheet

LER4B/LESQ4B LED 4" Round and Square Cylinders

LSR4B10D010BZ EC4B10209024 4LBNWH1

Cooper Lighting

Distributions: narrow (30°), medium (50°) and wide (75°) beams, Mounting: ceiling, wall, stem, aircraft cable; Down or up/down styles, Extruded aluminum housing; Die-cast or spun aluminum reflectors, 6 color temperatures: 2400K, 2700K, 3000K, 3500K, 4000K and 5000K CCT, CRI: 80, 90 or 97; D2W™ option from 3000K to 1850K, Lumens: 1,000-4,000; W2N Tunable White 2700K-6500K or 2000K-5000K, Colors: Matte Black, White, Bronze and Silver paint finishes, Standard 0-10V dimming down to 1%, ENERGY STAR® qualified, 5-year warranty, Integral or remote driver options 

Lamp type Nominal lamp power Total flux Luminous efficacy CCT CRI
LED 9.9 W 509 lm 51 lm/W 3000 K 100
LER4B/LESQ4B LED 4" Round and Square Cylinders

LER4B/LESQ4B LED 4" Round and Square Cylinders 

Light output 1 (integrated) 


Mounting mode 

Ceiling recessed

Shape and measurements 

Length: 3.94 in

Width: 3.94 in

Height: 3.94 in




System power: 9.9 W


IP: 47

Photometric data

ZIP file