Normal Power Factor: Power factors that have not been corrected above 90%. Typically an uncorrected power factor is 40-60%.
High Power Factor: Power factors that are greater than 90% and have been corrected above 90%.
UL: (Underwriters Laboratories Inc) Laboratory that sets safety standards for building materials, electrical appliances and other products.
Type CC: (Closed Cabinet) Ballasts rated for small enclosed areas.
Ballast Factor (Light Output): A measure of the light produced by a lamp operated by a ballast compared to the light produced by a laboratory standard lamp operated by a reference ballast. Expressed as a percentage.
BEF (Ballast Efficiency Factor): This is the ratio of ballast light output to the input power. Used to compare
different ballasts on a light output to power consumption basis. BEF = % light output / input power (watts)
Class B: An operating temperature classification for electrical components established by UL. Class B allows operation up to 130ºC.
Class H: An operating temperature classification for electrical components established by UL. Class H allows operation up to 180ºC.
Class P: The UL classification for thermally protected ballasts. Indoor fluorescent fixtures are required to have thermally protected ballasts. Internal thermal protector removes input power whenever specified temperature limits are exceeded, about 100-110ºC.
Instant Start: initial high voltage to break down the arc tube and initiate the flow of current. During the starting the cathode should establish the hot spot in 15 to 30 milliseconds. Usually identified by the single pin base. No preheating of the filament is required. Also a line of ballasts and lamps that utilize instant start usually T12 at 425mA, but also T8 and T6 at 300mA, 2’-8’ with single pin bases.
Magnetic Ballasts: A ballast that operates principally through the use of current carrying copper or aluminum coils assembled on a magnetic steel core, instead of electronic components, to operate lamps.
Rapid Start: A circuit where the electrode heating voltage and the starting voltage are applied to the lamp simultaneously through small, low-voltage filament windings. The open circuit voltage of the ballast is adequate to start the lamp only after the filaments have heated to emission temperature, and the lamps light when the electrodes have reached the proper temperature. The electrode heat remains on all the time the lamps are burning (continuous cathode heat). Also a family of lamps and ballasts that utilize continuous electrode heat. The family may contain the F40 line, which runs at 430mA, the HO line, which runs at 800mA, and the PG/VHO/SHO line, which runs at 1500mA.
PreHeat: A circuit where the lamp electrodes are heated by a switch, glow bottle starter, or electronic circuit prior to operating the lamp. When the filaments have heated up, the starter opens and the ballast then provides a suitable voltage to light the lamp and limits the current flow to the proper value. Several seconds are required to complete the starting
operation. Preheat lamps must use preheat ballasts.
Trigger Start: A variation of the preheat start circuit, the ballast operates preheat lamps in a rapid start manner by suppling continuous voltage to the electrodes to heat them to the proper temperature. Upon starting, the electrode voltage is reduced about one half to reduce the losses.
Thermal Protection: A device inside of the ballast, which senses the temperature and will disconnect the input power whenever the limit is exceeded. This usually consists of a bimetal switch. This protection guards against excessive temperatures, which may be caused by abnormal voltage. Thermal protection may be of two varieties, automatic resetting or nonresetting (like a fuse). When a nonresetting protector operates, the ballast may be permanently inoperable, and must be replaced. If the thermal protector meets certain UL specifications, the ballast can be classified as "Class P".
Total Harmonic Distortion: The combined effect of harmonic distortion on the AC waveform produced by a ballast or other device. Expressed as a percentage. Excessive levels of THD can create large currents on the neutral line of a four-wire Wye three-phase system.
Crest Factor: A function of the ballast, it is the ratio of the peak current value divided by the RMS current value. May be voltage or current crest factor. Usually high current crest factors result in reduced performance and ballast life.
Programmed Start: A programmed-start ballast is a more advanced version of rapid start. This ballast applies power to the filaments first, it allows the cathodes to preheat and then applies voltage to the lamps to strike an arc. This ballast gives the best life and most starts from lamps, and so is preferred for applications with very frequent power cycling such as vision examination rooms and restrooms with a motion detector switch.
cULus: (Underwriters Laboratories Inc.) Laboratory that sets safety standards for building materials, electrical appliances and other products. Canada and United States UL Listed
In stock (subject to prior sale): As of this morning we had anywhere from 1 to 1,000 or more in stock.
Special Order: The item is not a commonly sold item and it out of stock. Lead times can vary anywhere from 2 to 12 weeks, please email email@example.com for a more exact lead time.
Discontinued: The item is no longer produce by the manufacturer. See below for suggested replacement item link. If there is no suggested replacement please email firstname.lastname@example.org for options.
Made to Order Item: The item is not stocked no will the factory start production on it until it has an order in hand. Leads times can be anywhere from 10 days to 8 weeks, please email email@example.com for a more exact lead time.
Typically ships in 1 to 2 days: This is a non-stock item but the manufacturer typically has stock. We will order from the factory once your order is placed and typically can then ship your order complete within 2 business days.
Typically ships within one week: This is a non-stock item but the manufacturer typically has stock. We will order from the factory once your order is placed and typically can then ship your order complete within 1 weeks time.
Canadian Standards Association (CSA) Association that generates product performance and safety standards for many Canadian industries.
Auto Rest Shutdown Circuit Circuit senses lamp end of life and will automatically shut off power to the lamp(s). When a new lamp is inserted in the socket, the ballast resets, and turns on the lamp automatically. Some shutdown circuits require the power to be interrupted before a new lamp will re-light.
End of Life (EOL) Detects lamps that are near theif End-of-Life. EOL circuits typically sense this condition by measuring the DC offset of the lamp voltage wave form that occurs as the lamp electrode decays. When the circuit determines that the lamp is nearing its end, the AC ballast will shut down rather than powering the lamp. This action is designed to prevent the lamp from overheating. Most EOL detection circuits also trip when a lamp is removed or missing.
VDE The VDE Mark indicates conformity with the VDE standards or European or internationally harmonized standards resp. and confirms compliance with protective requirements of the applicable EC Directive(s).
ENEC "European Norms Electrical Certification". This demonstrates that a product has been certified by one of the national certification institutes in Europe. Today, there are 18 certification institutes who are signatories to the agreement. Apart from the ENEC Mark itself, there is also a two digit number that indicates which certification body has issued the ENEC Certificate.
UR Recognized Component Mark and Canadian Recognized Component Mark - Products intended for Canada carry the Recognized Component mark "C."
cURus Recognized Component Mark for Canada and the United States - This new UL Recognized Component Mark, which became effective April 1, 1998, may be used on components certified by UL to both Canadian and U.S. requirements. Although UL had not originally planned to introduce a combined Recognized Component Mark, the popularity of the Canada/U.S. Listing and Classification Marks among clients with UL certifications for both Canada and the United States has led to the new Mark.
CE The CE-marking is the manufacturer's statement to the EU authorities that his product complies with all relevant CE-marking Directives. It is important to emphasise that the CE-marking is not a quality mark or a guarantee to consumers in EU.
ETL Listed Mark ETL Listed Mark represents compliance to United States and/or Canadian product safety standards. You will find the ETL Listed Mark on electrical- gas-, or oil- fired products.
KEMA KEUR KEMA-KEUR quality mark demonstrates that your products and production location are under regular surveillance by DEKRA. Rather than just performing a one-time test, we continuously monitor conformity. KEMA-KEUR is recognized throughout Europe, while providing unrestricted access to many other markets worldwide.
MELLERT Mellert products are subjected to stringent quality controls, test and ISO-certification.
FCC FCC mark is a certification mark employed on electronic products manufactured or sold in the United States which certifies that the electromagnetic interference from the device is under limits approved by the Federal Communications Commission.
PCBs PCBs can degrade or breakdown in the environment, but the process greatly depends on the chemical makeup of the PCBs. Typically, PCBs are either broken down in the environment by sunlight or by microorganisms.
Type 1 Enclosures constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts and to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt).
Type 2 Enclosures constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt); and to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (dripping and light splashing).
Type 1 Outdoor Enclosures constructed for outdoor use to provide a degree of protection to personnel against access to hazardous parts and to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt).
Type 2 Outdoor Enclosures constructed for outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt); and to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (dripping and light splashing).
Type 1 and 2 Outdoor Enclosures constructed for indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects (falling dirt); and to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water (dripping and light splashing).
Returns at customers' discretion
All returns require a Return Material Authorization (RMA) number. Returns without an RMA number will incur a 40% restock fee. An RMA must be requested within 30 days of the original invoice date for non-defective product. Thereafter, all sales are final. All items must be returned in "new" condition. Returns will be charged 25% restock fee unless a replacement order of equal or greater value is placed at the time of the RMA. Shipping charges are non-refundable. The customer assumes all responsibility for insuring the return of the shipment and filing the claim for lost or damages returns.
Special Order and Non-Stock Items
Any return or cancelled order for an item marked as a Non-Stock, or Special Order will be charged up to 65% restock fee. The amount is determined by the manufacturer or supplier of the product.
Damage / Defect Policy
Damage in Transit
The customer is responsible for inspecting the order for damages or missing items and reporting it within 48 hours. Reports after that time will NOT be honored. Product damaged in transit will be replaced at no additional charge or credited to the credit card of the original charge (this is a choice to be made by Semperlite). The product MUST be kept in its original package for 10 business days or until the shipper makes the inspection. Credit will be issued for the exact number of items damaged in transit. DAMAGED LAMPS WILL BE CREDITED TO YOUR ORIGINAL FORM OF PAYMENT, AND A NEW ORDER MUST BE PLACED FOR REPLACEMENTS. WE DO NOT RE-SHIP REPLACEMENT LAMPS.
Warranty periods and services vary by manufacturer and product. Not all products are covered by a manufacturer's warranty. Statement of "Rated Average Life Hours" does not designate warranty. No credits or refunds will be given to items sent back for testing until the unit has been found to be defective. If it is more than 30 days since you have pruchased the product, you must contact the manufacturer of the item for warranty services.