Super Bright RGB LED for Moving Head: 120,000-150,000 Lux, Max 8x8cm, ~$400

The discussion focuses on sourcing a super bright RGB LED suitable for a moving head light design, targeting an intensity of 120,000 to 150,000 lux at 1 meter with a maximum LED size of 8x8 cm and a budget around $400. Achieving such high lux levels requires extremely high luminous flux; for example, a 25° beam angle at 1 meter corresponds to a surface area of approximately 0.58 m², necessitating around 70,000 lumens to reach 120,000 lux. Current high-power LEDs, such as Cree U2 (5mm x 5mm), produce about 740 lumens each, implying the need for large arrays (e.g., 16x16) to meet the luminous output, which introduces significant heat dissipation challenges (up to 1.7 kW and over 500 A current). Metal halide lamps like the OSRAM Sirius HRI 330W can achieve around 100,000 lux at 1 meter with a 25° beam but generate substantial heat requiring active cooling. The feasibility of passive cooling for such lamps is questioned. The discussion also notes the difficulty in finding compact (≤8x8 cm) light sources that deliver the required intensity without excessive heat. Lens optics with variable beam angles (0° to 75°) are considered to focus the light and increase lux. The user is open to using RGB LEDs or applying color filters to white LEDs if RGB options are unavailable within budget and size constraints.
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