Model DY-T5-4W300M Power 4W Input AC220V Power Factour >0.92 Power Efficiency >0.90 LED Efficiency >110lm/W Color WW: 3000K NW:4000K CW:6000K Material PC Size 17×300mm Warranty 2 years
FAQ 1: How many lights should I use in my room?
JOYINLED Reply: Reference Home customer, 100lm condition, 3w/square meters directly lighting, 6w/square meters directly lighting, Office customer, 500lm condition, 15w/square meters directly lighting, 30w/square meters directly lighting, For Home Customer for Office Customer 15 square meters house need about 6PCS, 15 square meters house need about 22PCS, 30 square meters house need about 16PCS, 30 square meters house need about 30PCS, For Office Customer 15 square meters house need about 22PCS, 30 square meters house need about 30PCS, The more you choose, the more bright light you can get ,and also the more built to your home. FAQ 2: What is the beam angle?
JOYINLED Reply: The beam angle of the down light is 45 and 60 degrees. The led chip beam angle is 140 degree, the lenses will brings the second optical light emitting Most of the lamps in the market will used 30 degree, that brings the light stratification, In human eye, there\'s middle spot in the center and with greenish light around. FAQ 3: How many lumens of the down light?
JOYINLED Reply: 3W is 300LM, similar like 30w incandescence bulb; 5W is 500LM, similar like 50w incandescence bulb FAQ 4: Do you have dimmable down light? Include driver?
JOYINLED Reply: Yes, Driver is including. We have dimmable lamps, we will charge $1/pcs more for dimmable lamps,you have better to contact seller to change the price. FAQ 5: Where can I install the down light?
JOYINLED Reply: It suit for foyer/living room/dinning room/bedroom/study room and so on.