| SPECIFICATION | YGPL270 |
| Power | 36W |
| System Efficiency | 95 lm/W |
| Color Temp. | 5000K |
| CRI | Ra＞95，RA＞50 |
| Voltage | 220-240V |
| Power Factor | 0.95 |
| Working Temp. | -20℃~+45℃ |
| Average illuminance of blackboard surface | 850±150lux |
| Average degree of blackboard | ＞0.8 |
| Depth of stroboscopic fluctuation | ≤0.21% |
| No blue light hazard | RG0 |