Watts the Deal?
How many watts is a 4-foot T12?
40 Watts or 34 Watts
What are the 3 things that LL88 mandates?
LPD, Submetering, & Controls
How do you notate 5 LED A19 bulbs in 1 fixture?
5F L A19
What kind of control does a bathroom need? (There is no shower)
Occupancy
What does DOB stand for?
What technology and estimated wattage is a legacy MR-16?
Halogen. 50 Watts
What is the window of lighting upgrades that exempt buildings from needing bi-level?
7/2010-4/2020
What is a failure mode? Give an example
A failure mode is an observable phenomenon that shows the bulb is dying. (e.g. color shift, blinking, dim, etc.)
What is the difference between Vacancy and Occupancy?
Occupancy just turns on with motion, Vacancy requires a manual on. Both are automatic off.
What is the process of checking lights and switches on site to ensure safety?
Verbally announce your intention to turn off the lights, look around to make sure no one is in danger, flip them off and on
What is the estimated standard wattage for an 8-foot LED integrated fixture?
60 Watts
When was LL88 originally released?
2009
How can you tell a recessed downlight has emergency battery back up?
A red button located near it on the ceiling or a red button inside the "can"
Are exterior fixtures on a large metal timer with the dial compliant? Why?
No, timers require 24-hour and 7-day control or a photocell. The old timers only provide 24-hour.
What is Egan's middle name?
Christopher
How many watts is a standard circline fluorescent bulb?
22W or 32W depending on the diameter
A storefront has a large window that is 6 feet wide and 6 feet tall. The only lights nearby are track lights that contain 4 halogen MR-16 bulbs. Is it subject to daylight zones and how would you remedy it?
Yes! (They could install LED MR-16s that lower the total wattage to <100W or install daylight sensors)
What is an industrial strip?
A strip fixture with "wings"
If there is a space with 3 wall switches that all control the same lights and requires a vacancy sensor for LL88, what would you recommend?
1 Wall Vacancy sensor with 2 companion switches or 1 ceiling vacancy, 1 wall switch, and 2 companion switches
How do some photocells know the difference between daylight and a artificial light?
The wavelengths of the sun are different than the wavelengths that light fixtures give off.
How many watts is a 1.5-foot T12?
15W
If one commercial space takes up 4000 square feet on the first floor and has 3 offices that are 500 square feet each on the second floor, do they need a submeter?
Yes! (All spaces are owned by one owner and total more than 5000 square feet. Even if it's on multiple levels)
What kind of non-visible sensor is inside of bi-level fixtures?
Microwave.
How do digital programmable timers know when to turn off the lights (even during daylight savings)?
They are astral timers! They use latitudinal and longitudinal coordinates to provide accurate control.
What type of LEDs are type A, B, and C?
A = Plug and play
B = Ballast Bypass
C= External Driver