Browse by Manufacturer

LED HID Retrofit Bulbs
Corn Cob LED Retrofit
Wall Pack ShoeBox LED Retrofit
High Bay Low Bay LED Retrofit
Adjustable LED Retrofit Bulbs
HPS Match LED Retrofits
Ballast Compatible LED Retrofit
Low Voltage LED HID Retrofit Bulbs
LED Light Bulbs
LED A19 Bulbs
LED Tube Lights
LED Filament Bulbs
LED Globe Bulbs
LED PL Lamps
LED Circline Bulbs
LED Reflector Bulbs
Fixture LED Retrofit Kits
Circular LED Retrofit Light Engines
Rectangular LED Retrofit Light Engines
LED Linear Retrofit Strip Kits
LED Retrofit Plate Kits
LED Commercial Fixtures
480 Volt LED Lighting
LED Emergency Backup
LED Flexible Ribbon
LED Flood Lights
LED Hazardous Location
LED High Bay Fixtures
LED Industrial Strip Fixtures
LED Parking Lot/Area Lights
LED Ready Fixtures
LED Security Lights
LED Under Cabinet
LED Vapor Tight Fixtures
LED Wall Packs
LED Wall/Surface Mount
LED Wraparound Fixtures
Temporary Jobsite Lighting
LED Recessed Light Panels
1x4 LED Light Fixtures
2x2 LED Light Fixtures
2x4 LED Light Fixtures
LED Recessed Fixtures
Super Thin LED Downlights
Commercial Down Light Retrofits
2" LED Recessed Downlights
4" LED Recessed Cans
4" Recessed Light Trims
5" LED Recessed Cans
5" Recessed Light Trims
6" LED Recessed Cans
6" Recessed Light Trims
8" LED Recessed Cans
Juno WarmDim LED Downlights
4" Recessed Retrofits
6" Recessed Retrofits
8" Recessed Retrofits
9" and 10" Recessed Retrofits
LED Recessed Light Panels
LED Home Lighting Fixtures
Juno 120V Track Lighting
120V Track Lighting Heads
Trac-Lites 120V Track Sections
Trac-Lites 120V Track Accessories
Trac-Master 120V Track Sections
Trac-Master 120V Track Accessories
Juno Trac 12 LED Track Lighting
Trac 12 Track
Trac 12 LED Track Heads
Trac 12 LED Track Pendants
Trac 12 LED Bulbs
Trac 12 Accessories
LED Exit and Emergency Lights
LED Bug Eye Emergency Lights
LED Exit Emergency Combos
LED Exit Signs
LED Drivers
Constant Current LED Drivers
Constant Voltage LED Drivers
Emergency LED Drivers
Compact Fluorescent
T2 Micro CFL Bulbs
Enhancement Suite CFL Bulbs
Spiral CFL
3 Way CFL Bulbs
Globe Shaped CFL
Dimmable CFL
5000K Day Light CFLs
MiniCandle Shaped CFL
Enclosed Rated CFL
Candelabra Base CFL
Decorative CFL Bulbs
R20/ R30/R40 Flood CFL
Incandescent Shape CFL
GU 24 CFL Light Bulbs
High Wattage CFL Bulbs
277 Volt CFL Bulbs
PL CFL Light Bulbs
Fluorescent Light Fixtures
High Bay Fluorescent Fixtures
T5 Fluorescent Lighting Fixtures
Recessed Fluorescent Fixtures
Wall/Surface Mount Fixtures
Fluorescent Cloud Fixtures
Fluorescent Strip Fixtures
Fluorescent Wrap Around Fixtures
Industrial Light Fixtures
Fluorescent Vapor Tight Fixtures
Home Lighting Fixtures
ENERGY STAR Chandeliers
ENERGY STAR Wall/Sconces
ENERGY STAR Flush Ceiling
ENERGY STAR Semi-flush Ceiling
Dusk-To-Dawn Lighting
Xenon Under Cabinet
HID Ballast Kits
Metal Halide Ballast Kits
F-Can Metal Halide Ballasts
HPS Ballast Kits
F-Can HPS Ballasts
Metal Halide Lamps
Venture Natural White
Super Pulse Start Long Life
Ceramic Metal Halide
Tubular Metal Halide
Open Rated Metal Halide
Pulse Start Metal Halide
Reduced Jacket MH
Medium Base MH Lamps
Coated Metal Halide
Clear Metal Halide
HPS to MH Retrofit Lamps
High Pressure Sodium Lamps
Medium Base HPS Lamps
Mogul Base HPS Lamps
Fluorescent Ballasts
Circline Ballasts
Compact Fluorescent Ballasts
Electronic T5 Ballasts
Electronic T8 Ballasts
Fluorescent Dimming Ballasts
Instant Start Ballasts
NEMA Premium T8 Ballasts
Plastic Sign Ballasts
Program Start Ballasts
Linear/U-Bend Fluorescent
T5 Fluorescent Lamps
T8 Fluorescent Lamps
Fluorescent Circline Lamps
Lutron Dimmers and Switches
0-10V Dimming Controls
Ariadni C-L Dimmer Switches
Contour C-L Dimmer Switches
Diva C-L Dimmer Switches
Maestro C-L Dimmer Switches
Lutron Wallplates
Electrical Supplies
Dusk-To-Dawn Photocell Sensors
Intermatic Timer Parts
LED Exit and Emergency Lights
LED Surge Protection
Low Voltage Transformers
Mechanical Timer Switches
NEMA Twist Locks
Occupancy Sensors
Power Distribution Blocks
Pre-Insulated Connectors
Reflect-A-Bay Accessories
Wire Rope Fixture Hangers
Wireless Dimmer Switches
Wireless Occupancy Sensors
Wireless Switches
Light Sockets and Adapters
Socket Reducers
American Dryer Hand Dryers
Products Made In USA 
LED Christmas Lights
5mm Wide Angle LED Light Sets
M5 (Mini) LED Light Sets
G12 (Raspberry) LED Light Sets
C6 (Strawberry) LED Light Sets
C7 Christmas Lights
C9 Christmas Lights
Multi-Color LED Light Sets
Blue LED Light Sets
Gold LED Light Sets
Green LED Light Sets
Pink LED Light Sets
Purple LED Light Sets
Red LED Light Sets
Warm White LED Light Sets
White LED Light Sets
Battery Powered LEDs
Commercial Christmas Lights
Commercial LED Power Acc

Lotus LED Lights
4" Super Thin LED RND BLK 4100K

Lotus LED 4 Inch 3000k Round Super Thin Recessed LED Black
Our price (Before qty discounts*): $44.62

Buy more and maximize your green!

1 to 3$44.62
4 to 6$43.13
7 or more$42.06
Larger Quantity? Request A Quote

Please allow 2-4 business days for product to ship.
Item Number: LY4RCS/41K/BK
Manufacturer: Lotus LED Lights
Manufacturer Part No: LY4RCS/41K/BK - Lot
Operating Voltage: 120 Volt
UPC: 638458884905
Technology: LED
Application: 4" Recessed
Watts: 9
Lumens: 600
Color Temp: 4100K
CRI (Color Rendering Index): 82
Common Name of Color: Cool White
Dimmable: Yes
Beam Angle Range: 110-119
Incandescent Replacement: 50 Watt
Finish Color: Black
Product Specifications - Quick Reference
9 Watts
4.75" Diameter x .5" High
Beam Angle
Operating Life:
110 degrees
50,000 hours
Working Voltage:
Color Temp:
120 Volt

5 Year Limited (Commercial)
10 Year Limited (Residential)
Light Output:
600 Lumens
Energy Star, cULus, cETLus

Lotus LED LogoSince its first super slim products launch in 2010, Lotus LED Lights have set the competitive bar extremely high and are the most preferred super slim recessed LED lights used by architects, interior decorators, designers, builders, electricians and homeowners in North America. Lotus LED Lights offers superior flexibility, unlimited layout options and can be installed anywhere in your home to create a gorgeous high-end living environment by delivering warm and inviting light. These ultra thin recessed LED down lights are absolutely perfect for tight spaces, soffits, insulated and dropped ceilings. The Lotus LED Lights super slim recessed LED fixtures are cULus Listed, cETLus Approved, Energy Star Certified, rated Type IC (Direct Contact with Insulation) and they are air-tight. A recessed downlight housing (also called out as a Pot Light Housing) is NOT Required - even for Insulated Ceilings. This 1/2 Thick, low profile LED fixture fits directly under joists giving you maximum lighting layout flexibility in even the tightest spaces. Click here to see the Lotus 4 Inch Super Thin Recessed LED Specification Sheet

Every Lotus LED fixture is constructed with integral Epistar LEDs and the 120 volt, 60Hz, isolated, external, magnetic, constant current driver is factory installed inside the junction box. Lotus engineered all of their fixtures with the constant current driver in order run their fixtures at 90% of their rated current. This provides additional reliability and longer life. You need one driver for every fixture. Lotus engineers believe that if you have one driver for multiple fixtures you need to have an additional current regulator on every fixture if you want all fixtures to have the same brightness and the ability to dim simultaneously. The Lotus LED system is more reliable. Should you need to disconnect one fixture you would not effect the operation of the others. (Note: All connections in any ceiling requires a junction box, which Lotus provides as the driver compartment). Fixture comes connected to the driver by 12 long low voltage cable with waterproof connector in the middle. Depending on where you want the driver to be you have 2 options: To locate the driver next to the fixture simply run your line voltage wiring to the first junction box in your circuit and daisy chain to the junction boxes of the other fixtures, or install all of your drivers at one location and use low voltage extension cables to the fixtures (Use only extensions provided by the manufacturer. Available jumper cables are 6 feet (1.8m) and 20 feet (6m). Cables are linkable). The maximum run should not exceed 40 feet (12m). Click here to see the Lotus Wet Location Down Light Installation Instructions 

There are two 4" models available to you from Lotus. The two primary differences are the brightness generated and the trim diameter and width. As for brightness: model LY4RCS generates 600 lumens and is a 50W halogen equivalent and model LY41RCD generates 700 lumens and is a 65W halogen equivalent. The trim diameter and width on model LY4RCS is 4 3/4 inch OD and the ID is 4 1/8 inch (Note: The hole has to be carefully cut since there is no room for mistakes). Model LY41RCD is 4 15/16 inch OD and the ID is 3 15/16 inch. The trim is wider so this model may even cover existing holes. The 1/2 inch can be installed directly under joists same thickness as the drywall, thus allowing maximum layout flexibility, and their price is lower. If you do not have the joists restriction go for the 1 inch thick models you can install less fixtures for the same brightness level. How much space do you need in the Ceiling? For the 4 inch fixtures you need 2 inches of space above the drywall in order to squeeze the rectangular junction box through the 4 inch round ceiling hole. 6 inch fixtures are also available and you will need 1 1/2 inch space. The Lotus LED Light fixtures are really easy to install. Just check out the short video below. 

This item is the Lotus LED Lights LY4RCS/41K/BK. It is the super thin, ultra low profile, 9 watt, 4" x 1/2" thin, round, LED recessed down light with a black trim (a brushed nickel or white trim option is also available). The LY4RCS/41K/BK is Air-Tight and is rated for Wet locations and Insulated Ceilings.. This 4 inch LED retrofit has a beam angle of 110 degrees, generates 600 lumens of 4100K light and is designed to replace up to 50 watt halogen lights in recessed downlight applications. They operate on 120V, 60Hz input voltage (a 277v version is also available) and are dimmable down to about 10% when using approved dimmer switches. Click here to see the Lotus LED Light Dimmer Compatibility List 

Each Lotus LED Lights recessed down light carries a 10 year residential or 5 year commercial limited warranty. Click here to see the complete Lotus LED Light Limited Warranty Information. Lotus can offer this because every single driver is powered for a minimum of 24 hours together with the fixture that it is shipped with. Every LED is visually checked before and after the PCB is mounted on the fixture. No Random Tests Lotus Hand Tests Every Fixture And Driver.

* Quantity discounts every day on all products!

Go Green – Buy Earth Friendly Products

Related Products

Lotus LED 4 Inch 3000k Round Super Thin Recessed LED Black
Lotus LED Lights
4" Super Thin LED RND BLK 3000K
Please allow 2-4 business days for product to ship.
Our price (Before qty discounts*): $44.62
4" Super Thin LED RND BLK 3000K
Lotus LED Lights LY4RCS/30K/BLK - Ultra Thin 4 Inch Round LED Recessed Ceiling Light Fixture Kit- 120V - 3000K - 550 Lumen - Black Trim and Driver Included - 4 Inch Low Profile LED Recessed Ceiling Lights - Wet Location Rated.
Super Thin Low Profile LED Recessed Down Light
Lotus LED Lights
4" Super Thin LED RND BN 4100K
Please allow 2-4 business days for product to ship.
Our price (Before qty discounts*): $47.69
4" Super Thin LED RND BN 4100K
Lotus LED Lights LY4RCS/41K/BN - Ultra Thin 4 Inch Round LED Recessed Ceiling Light Fixture Kit- 120V - 4100K - 600 Lumen - Trim and Driver Included - 4 Inch Low Profile LED Recessed Ceiling Lights - Wet Location Rated
Super Thin Low Profile LED Recessed Down Light
Lotus LED Lights
4" Super Thin LED RND WHT 4100K
In stock
Our price (Before qty discounts*): $44.62
4" Super Thin LED RND WHT 4100K
Lotus LED Lights LY4RCS/41K/WH - Ultra Thin 4 Inch Round LED Recessed Ceiling Light Fixture Kit- 120V - 4100K - 600 Lumen - White Trim and Driver Included - 4 Inch Low Profile LED Recessed Ceiling Lights - Wet Location Rated.
Lotus LED 4
Lotus LED Lights
Lotus 4" LED Rough-In Plate
In stock
Our price (Before qty discounts*): $7.98
Lotus 4" LED Rough-In Plate
RIP4 - Lotus 4 Inch Rough-In Plate - Lotus LED Lighting Fixtures - Easy Layout Planning for New Wiring Projects - New Construction Projects- - Durable Metal Sheets - 2 Foot long - Fits up to 24 Inch Spaced Studs
Lotus LED 4
Lotus LED Lights
Goof Ring for 4" RND 5 3/4" OD
In stock
Our price (Before qty discounts*): $7.42
Goof Ring for 4" RND 5 3/4" OD
Lotus LED Lights GR4 - Goof Ring for use with 4 Inch round Lotus LED recessed down light retrofits - The GR4 goof ring has a 4 1/4 Inch ID by 5 3/4 Inch overall diameter and is white in color - Use for 4 Inch recessed installations when hole is too large
Shopping Cart
Your cart is empty.
Search Shopping Lists

Sign up today to
maximize your green®
and receive money saving
tips and special offers!


Click to verify BBB accreditation and to see a BBB report.