Over the dining table
Hang 30–36″ above the table top; the fixture about two-thirds of the table width, centred on the long axis. Add 3″ per foot of ceiling above 8 ft.
Pair with a dimmer · 3,000–6,000 lm for the room
Rayonshine
Sum Pendant Lamp
Size:Dia 42cm x H 12cm / ∅ 16.5″ x H 4.7″
Color:Black
Kelvin Range:Warm Light
Quantity:
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Free design · made to your specfree for every customer
Free 3D lighting simulationSend a room photo — see the Sum Pendant Lamp in your space as a photorealistic render within 24 h. No deposit, unlimited revisions.Start a free render →
Made to your specCustom size, finish or Pantone colour — designed and built in our own factory.Custom lighting →
Need a longer cord, a different finish or a dimming driver? Ask before you order — a quote comes back within 1 business day, and custom pieces are final sale.Request a change →
Choose options
Size:Dia 42cm x H 12cm / ∅ 16.5″ x H 4.7″
Color:Black
Kelvin Range:Warm Light
Quantity:
Size:Dia 42cm x H 12cm / ∅ 16.5″ x H 4.7″
Color:Black
Kelvin Range:Warm Light
Quantity:
Plan the ceiling
How high, how wide, how many.
Numbers from our Sizing & Installation guide. Read the guide →
Kitchen island
One pendant for every 24–30″ of island, equally spaced and from each end. A 6-ft island takes three small or two medium pendants.
Set of 3 · 450–600 lm each
Room centre
Add the room's length and width in feet — the sum, read in inches, is the diameter. Keep 7 ft of clearance from the floor to the lowest point.
Single · round up for high ceilings
01Overview
Black or white pendant with direct plug-in wiring and dimmable-compatible switch.
The Sum is a 16.5″-wide pendant with a floating metal disc and acrylic glow—large enough to anchor a kitchen island or dining table without overwhelming a standard 8-foot ceiling. Warm (3000K) or cool (6000K) LED light integrates into the acrylic shade and runs directly to wall power. Works on any flat ceiling with standard household switches; confirm your switch is not a dimmer before ordering.
02Gallery
03Materials & Craft
Floating disc + glow
Large metal canopy floats above a luminous acrylic shade. Creates ambient light with architectural presence.
Direct-to-mains wiring
No bulb to buy or replace. Integrated LED connects to standard AC outlet via 150cm cord. Accepts ordinary wall switches.
Two finishes, two color temperatures
Choose black or white. Pick warm white (3000K) for living spaces or cool white (6000K) for task areas.
04Size
OverallØ 42 cm (16.5″) wide × 12 cm (4.7″) tall
Cord length150 cm (59″) standard; custom lengths available on request
Power supplyAC 110–240V, hardwired to mains
05Dimensions
06Specifications
MaterialMetal disc and frame; acrylic shade
Socket or Light sourceIntegrated LED module (non-replaceable)
Recommended bulb or KelvinWarm Light (3000K) or Cool Light (6000K); select at purchase
VoltageAC 110–240V
PowerSee product documentation
SwitchCompatible with standard household on/off switches; not compatible with dimmers
Cord or Cable150 cm (59″) standard; custom lengths available upon request
EnvironmentIndoor use only; not waterproof
CareWipe metal and acrylic with soft, dry cloth
07Downloads
08Questions
Can I use this with a dimmer switch?
No. The LED module is not dimmer-compatible. Use only standard on/off household switches.
Do I need to buy bulbs?
No. The LED is built in and lasts the life of the fixture. You select warm or cool light at purchase; it cannot be changed later.
What size room does this pendant light?
At 16.5″ wide, it works well over a kitchen island, dining table, or bar. It's not designed for task lighting directly below—position it 24–30″ above the work surface.
Will this plug in pendant light work on a sloped ceiling?
No. The fixture mounts flush to flat ceilings only. Sloped or cathedral ceilings require a different installation method.
Downloads
30days
30-day returnsFrom delivery, uninstalled and in the original packaging, with a return authorisation first. No restocking fee. Transit damage reported within 72 h is replaced free.15–35%
Trade programmeInterior designers, architects, contractors and hospitality buyers: discount by order value, replies within 1 business day, NET 30 on approval.
1day
Reply within 1 business dayOrder help, product advice or a 3D request — +1 800-978-5754 or support@rayonshine.com, every day of the year.
Rayonshine · Est. 2013 · Wilmington, Delaware · 1,100+ orders in the last 12 months, 92% to U.S. homes
Reviews
On their walls, in their words.
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|---|---|---|---|---|
| Price | $185.00 | $130.00 – $479.00 | $223.00 – $515.00 | $500.00 – $2,118.00 |
| Sizes | 1 · Dia 42cm x H 12cm | 4 · Dia 18cm / Dia 28cm / Dia 38cm | 9 · Model C Dia 30cm x H 30cm / Model D Dia 28cm x H 40cm / Model E Dia 30cm x H 28cm | 7 · 3 heads (28cm*2 / 5 heads (28cm*5 / 5 heads (28cm*3 |
| Finish × glass | Black / White (2) | Red / Gold / Silver / Smoke gray (4) | White (1) | Rose Gold / Gold / Smoky gray / Silver (4) |
| Light & dimming | Warm Light / Cool Light | See specifications | See specifications | See specifications |
| Rating | New | ★ 4.57 (77) | ★ 4.52 (64) | ★ 4.73 (37) |
The Sum family
Same glass, other forms.
Finish the room in one material — a pendant over the bedside, a chandelier over the table.