1. Import IC and large power transformer, to drive efficiently. 2. Thickened aluminum alloy shell, provides large heat dissipation area and long service life. 3. Adopt with internal epoxy silicone encapsulating material for high density waterproof. 4. Widely applied to LED lamps, floodlights, street lamps, miner lamps, tunnel lights 5. Input: AC 85-265V, 0.45A, 50/60Hz 6. Output: DC 24-38V 7. Constant current: 300mA +/-5% 8. Working temperature: -40 ~ 80 Celsius degree 9. Size: 53 x 25 x 20mm