SF-DL2000 Derby Light

What the SF-DL2000 Is

The SF-DL2000 is a derby effect light — sometimes called a butterfly light — that combines two separate light sources into one fixture. The LED section uses 2×10W RGBW 4-in-1 LEDs behind a multi-faceted lens system to project wide-angle beams that sweep, fan, and overlap across walls, floors, and ceilings. The laser section projects red and green patterns — pinpoint dots, starfield effects, and geometric shapes — on top of the LED beams. The combined result is a layered, multi-texture effect that fills a room with both broad colored sweeps and sharp laser accents simultaneously.

This is not a wash light (it doesn't produce even, flat coverage) and it's not a beam light (it doesn't project a single concentrated shaft). A derby light is a pattern and effect fixture — it creates visual motion, texture, and energy across a wide area. The beams move and change through the internal lens/mirror system, creating the "butterfly" effect: symmetrical, wing-like beam patterns that sweep outward from the center of the fixture.

LED + Laser — Two Different Effects

The two light sources in the SF-DL2000 serve different visual roles:

• RGBW LEDs (butterfly beams) — Broad, colorful, sweeping beams that cover large areas. These create the primary visual energy of the fixture — wide swaths of red, green, blue, white, and mixed colors that move and overlap across the room. The effect is bold, colorful, and fills space.
• Red + green lasers (pattern overlay) — Sharp, precise, pinpoint patterns that project on top of the LED beams. Laser dots and shapes are thin, defined, and high-contrast. They add visual detail and complexity — starfields of tiny dots, geometric shapes, and crisp lines that the broad LED beams can't produce on their own.

Together, the two sources create more visual depth than either one alone. The LEDs provide color and energy; the lasers provide sharpness and texture.

Who It's For

Mobile DJs, house parties, bars, clubs, karaoke rooms, skating rinks, school dances, birthday parties, holiday events, and any situation where you want room-filling visual effects without complexity. The SF-DL2000 runs on ~30W, weighs almost nothing, and can operate in sound-active or auto-run mode with no controller at all — plug it in and it goes. It's also DMX-controllable for integration into larger lighting rigs.

RGBW 4-in-1 LED Butterfly Beams

The LED section uses 2×10W RGBW 4-in-1 LEDs — each LED contains red, green, blue, and white emitters in a single package. The light passes through a multi-faceted internal lens system that splits each LED's output into multiple beams and projects them outward in a wide, fan-shaped pattern. These beams sweep across the room as the internal optics rotate and shift, creating the characteristic "butterfly" effect — symmetrical, wing-like beam patterns that spread, overlap, and change color in real time.

The RGBW color system produces the full spectrum of colors through mixing (16.7 million combinations), plus clean white from the dedicated white emitter. The beam angle of approximately 60° means the fixture covers a wide area from a single position — one SF-DL2000 can fill a small-to-medium room with sweeping color patterns.

Red & Green Laser Patterns

The laser section includes two separate laser diodes:

• Red laser — 100mW — Higher power, produces brighter and more visible red patterns, dots, and geometric shapes.
• Green laser — 30mW — Lower power but higher perceived brightness (the human eye is most sensitive to green light). Green laser patterns appear vivid and sharp even at lower output.

The lasers project patterns, starfields, and geometric shapes through a diffraction grating system. These patterns overlay the LED butterfly beams, adding a layer of fine detail — tiny pinpoint dots scattered across walls and ceilings, crisp geometric lines, and star-like clusters that move and rotate. The laser patterns are especially dramatic on dark walls and ceilings where the pinpoint precision of the laser dots stands out against the broader LED beam washes.

Combined Effect

When both the LED and laser sections are active, you get three visual layers simultaneously: broad RGBW butterfly beam sweeps (color and energy), sharp laser dot patterns (texture and detail), and the interaction between them as both effects overlap and move. In sound-active mode, all three layers react to music — the butterfly beams sweep on beats, colors shift, and laser patterns pulse in response to bass hits and rhythm changes.

Color Temperature

The RGBW LEDs have a base color temperature of 2700K (warm white) when only the white emitter is active. Full RGBW mixing provides the complete color spectrum beyond the warm white baseline.

Complete Specifications

IP22 — Indoor Use Only

The SF-DL2000 is rated IP22 — basic protection against solid objects larger than 12.5mm and vertically dripping water. This is an indoor-only fixture. Do not use outdoors, in rain, or in humid or wet environments. The laser diodes are especially sensitive to moisture and temperature extremes.

Power

At approximately 30W, the SF-DL2000 draws virtually no power. A single 15A/120V circuit can support dozens of these fixtures. Power is never a limiting factor.

What's in the Box

• SF-DL2000 Derby Light (1 unit)
• Power cable
• User manual

Control Modes

DMX Channel Layout — 8CH

Note: The channel layout above is a standard configuration for this fixture class. Refer to the included user manual for exact channel assignments, as DMX maps may vary by firmware version.

Wiring

Standard 3-pin XLR DMX In/Out for daisy chaining. Connect your console's DMX output to the first fixture's DMX In, then daisy-chain from each fixture's DMX Out to the next.

Frequently Asked Questions

Can I use the SF-DL2000 outdoors?
No. The SF-DL2000 is rated IP22 — indoor use only. The laser diodes are sensitive to moisture and temperature extremes. Do not use in rain, outdoor open-air environments, or high-humidity spaces.

What's the difference between the LED effect and the laser effect?
The LED butterfly beams produce broad, colorful sweeps of light — wide beams that fan across walls, floors, and ceilings in RGBW colors. The lasers produce sharp, precise dots and patterns — pinpoint red and green projections that overlay the LED beams. The LEDs fill space with color; the lasers add fine detail and sharpness. Together, they create a layered, multi-texture effect.

Is this a disco ball replacement?
It fills a similar role — room-filling visual effects for parties, dances, and events — but the effect is different. A disco ball reflects a single light source into hundreds of dots. The SF-DL2000 projects colored butterfly beam patterns from LEDs and sharp geometric patterns from lasers. The visual effect is more varied and colorful than a traditional disco ball.

Do I need a DMX controller?
No. Sound-active mode responds to music through the built-in mic, auto-run cycles through programs on power-up, and master/slave lets one unit control others — all without any controller. DMX is there if you want to integrate the fixture into a larger rig with precise control.

How much area does it cover?
With an approximately 60° beam angle, the SF-DL2000 covers a wide area. Mounted at 8–10 feet, one fixture can fill a small-to-medium room (20×20 ft) with sweeping beam patterns. Two units on opposite sides of a room provide overlapping coverage for larger spaces.

Is the laser dangerous?
The SF-DL2000 contains Class 3R laser diodes (100mW red, 30mW green). Direct eye exposure must be avoided. Mount the fixture above head height and angle it so laser patterns hit walls, ceilings, and floors — never directly into the audience's line of sight. Check your local regulations regarding laser use in public venues; some jurisdictions require a variance or notification for laser effects in public spaces.

How loud is the fan?
The SF-DL2000 uses a silent fan cooling system designed for low noise. In a music environment (party, DJ set, club), the fan is completely inaudible. In a quiet room, it's barely perceptible.

How heavy is it?
The SF-DL2000 is very lightweight — approximately 3 lbs. Easy to mount on a T-bar, lighting stand, or bracket, and simple to transport.

Setup Tips

• Mount above head height. This applies to any fixture with lasers — mount the unit high enough that laser patterns project down onto floors, walls, and ceilings, not into anyone's eyes. A standard lighting stand, T-bar, or ceiling bracket at 8+ feet works well.
• Pair with haze or fog. The butterfly beams become dramatically more visible in haze — instead of just seeing the beam endpoints on walls, you see the sweeping colored shafts of light in the air. The laser dots also become visible as beams cutting through the haze.
• Use multiple units for larger spaces. One SF-DL2000 fills a small room. For medium-to-large spaces (dance floors, event halls, bars), use 2–4 units positioned around the room for overlapping coverage and more complex visual patterns.
• Combine with other fixtures. Derby lights work well alongside par lights, moving heads, and strobes. The derby provides pattern and motion effects while pars provide color wash and moving heads provide beam and sweep effects — different visual textures that complement each other.
• Sound-active in the right spot. The built-in microphone responds best when the fixture is near a speaker or sound source. If the fixture is far from the audio, sound-active mode may not trigger reliably.