1. Size: 37 x 37 mm.
2. Weight: 13.6g.
3. Long lifespan. 
4. High shock and vibration-resistant. 
5. Advertising light boxes. 
6. Billboard back lighting. 
7. Channeling letters.
1. Voltage: 12V DC. 2. Current: DC 15mA. 3. LED quantity: 9 pieces per unit. 4. LED specification: 1210/3528 SMD LED. 5. Colors: RGB. 6. Luminous intensity per SMD: R: 2.4-3lm, G: 3.6-4.2lm, B: 0.9-1.2lm.