Frequently Asked Questions

Question 1: What can I expect when ordering from LumenArc? You will expect to receive brand new high quality bulb burner or reflector at an affordable price. The replacement of lamp bulb burners does require some hands on work and best left to those who are good with DIY stuff.

Question 2: What lamp bulb burner do I need for my projector? We expect most of our customers to know which lamp they need as the information are readily available on manufacturer’s website. Any information that is not available should be requested directly from the manufacturers to avoid purchasing the incorrect lamp bulb burners. All lamp bulb burners are either AC or DC and High Voltage Ignition or Low Voltage Ignition.

Question 3: How do I know if I have an AC or DC lamp? The best way to tell if your lamp is AC or DC is by removing the old one and checking the 2 electrodes. If the electrodes are of the same size in thickness, then it is an AC lamp. DC lamps will have one electrode larger than the other. Alternatively you can check the manufacturer’s website. SHP (Phoenix), NSH and UMPRD (Ushio) lamps are DC lamps. P-VIP (Osram), UHP (Philips), HSCR (Iwasaki), HS (Panasonic), NSHA (Ushio) and UHE are AC lamps. All the same Mercury Vapour Lamps but different names given by different manufacturers.

Question 4: How do I know if I have a High Voltage Ignition or a Low Voltage Ignition Lamp? For the DC lamp bulb burners, SHP uses Low Voltage Ignition whereas NSH uses High Voltage Ignition. However, we have seen Low Voltage Lamp Bulbs to also work and operate fine for NSH application. The general rule for AC Bulbs is that where the bulb burner has the lead wire wounded on the top portion of the bulb is generally of Low Voltage Ignition type. Where there is no lead wire wounded then it is of the High Voltage Ignition type. However, it is generally best to get the information from the manufacturers or other informative websites and forums.

Question 5: The old bulb burner is bonded onto the reflector. How do I remove it? The best way is your way as there are many ways. Most enthusiasts prefer leaving the adhesive soaked to make it softer and easier to remove, however, we have in the past removed the adhesive without any soaking. Enthusiasts have used different ways to break the cement that holds bulb to the place. The most common way is to scrape the adhesive off with a sharp pick and small flat screwdriver layer by layer until it is weak enough to rotate the bulb burner from the reflector. You must be very careful not to chip the reflector whilst using the screwdriver. Alternatively, you can cover the whole bulb burner with masking tape (to prevent glass spillage) and then break the bulb burner with a cloth and a pair of pliers and then drilling the adhesive bit by bit. We recommend the first method. Alternatively, there are other methods in which we suggest to look up in dedicated forums. Be sure to use safety glasses and quality gloves.

Question 6: Now I''ve removed it, how do I install my new bulb burner or new reflector? We strongly advise to wire up the bulb burner temporarily to your projector to make sure it works and is compatible as returns are not accepted unless received in its original condition when sent out. All returns are subjected to a 25% surcharge. We recommend you use smooth refractory mortar or furnace cement to bond the burner onto the reflector. Other products may not be suitable due to expansion under heat which in effect could crack the reflector.

Question 7: Do I have to mark the position of the bulb burner before removal? It is always best to mark the position of the bulb burner from the reflector for optimal performance. Our preferred method is to shine a bright light through the underside of the reflector, in which the electrodes become apparent. Then just mark the electrode positions (or the gap) on the reflector itself with a sharpie marker. When installing the new bulb burner, make sure the electrodes line up with the mark. This way adjustment is not generally necessary and much cleaner.

Question 8: How long does it takes for my order to arrive? Since LumenArc is new to the online world and the fact that it is run by only 3 staffs, we only ship out once a week. However we aim to deliver between 7-10 working days for UK orders and 10-20 working days for overseas orders although disruptions may occur. We ask customers to bear with us in this difficult period until we become more stable.

Question 9: Does LumenArc accept Credit Card Payments? On top of normal PayPal payments, LumenArc does accept credit card payments. All credit card payments are processed and authorised through the PayPal processing system. This means that all card transactions are secure.

Question 10: Can you source me a projector product not listed in your website. We are continually listening to customer needs and have increased our product range. If a particular product is not instore, then please contact us and we shall try our best to source the item for you. considering in stocking ballasts in the near future, however, due to sales of ballast being very limited, we are not offered discounts on the items thus have to pay the high price including individual postage charge as these are sourced from other manufacturers. We may be able to source these for you at cost price.

Question 11: Who are your primary customers? Our primary customers are the DIY Projector community in the UK. However we do not single out anyone, we are open to all who wish to purchase our products for whatever their needs may be. Whether you require our quality products be it for a commercial projector, small homebuilt projector or even miniature hydroponics, we are the people you should be looking for. LumenArc is confident of their prices in the UK market.