The GUSP-A001 is the GU10 dimmable LED spotlight for the fittings that take the twist-lock capsule: the ceiling downlights, the track heads and the display fittings. It is a COB bulb in the MR16 family format — 50mm across and 50mm tall — and the dual-supply design is what sets it apart: one bulb range covers both the mains fittings and the low-voltage 12V ones, ordered per the fitting’s supply.
The dual supply
The specification covers AC12V and 110-240VAC, which means the range serves both sides of the lighting market in one socket format. The mains versions run directly from the wall supply — no transformer, no driver box to hide, the simplest retrofit in the range. The 12V versions sit on the low-voltage side for the fittings wired for the halogen GU10s, with the same transformer-compatibility check the 12V MR16 bulbs carry: confirm the transformer is LED-compatible before the swap, because the old halogen types were sized for 50W loads and some electronic ones will not run a 7W LED cleanly.
The COB source
The light source is a single COB chip behind the 115° beam, so the pool of light on the counter or the display reads smooth from edge to edge rather than showing the ring of points an SMD bulb carries. Output is 450 lumens from 5 to 7 watts — the halogen GU10 replacement class — and CRI is above 80, which keeps the merchandise, the work surfaces and the skin tones reading true under it.
Colour temperatures
Five colour bins cover the practical range: 2700K and 3000K for the warm residential and hospitality positions, 4000K for the neutral working light, and 5000K and 6000K for the cool display and retail runs. The CCT is fixed per bulb and chosen at order time, so the fittings in one room should order the same bin to read as one installation.
Dimming
The bulb dims on a Triac dimmer, leading-edge or trailing-edge, matched to the supply the bulb runs on. The mains versions dim on the wall dimmers the fittings already carry; the 12V versions dim through their transformer chain. Set the low end before the fitting goes into daily use, because the minimum level is the part every dimmer handles differently.
Body and build
The body is PC in white, 50×50mm, IP42 rated for the dry indoor fittings — the ceiling downlights, the track heads, the display cabinets. It is not a wet-position bulb, so the bathroom and the outdoor positions need a rated fixture around it. The bulb carries SAA, CE and RoHS certification with a two-year warranty.
Où est-il utilisé ?
Ceiling downlights on the mains, where the GU10 swap skips the transformer entirely. Track heads and display fittings on the 12V side, where the existing low-voltage wiring stays. Retail shelves and hospitality interiors, where the CRI above 80 and the five colour bins cover the merchandising and the ambience. And the kitchen and living-room fittings, where the halogen GU10s are being replaced one by one for the LED equivalents. In each of these the swap is the same twist-lock procedure: pull the halogen, push the GU10 pins in, twist, and the fitting keeps its position and its beam while the draw drops to a fraction.
MR16 or GU10 — choosing the socket
The choice between this bulb and the MR16 version of the range (the MRSP-A001) is made by the fitting, not by preference. A GU10 socket takes the twist-lock mains or dual-supply capsule; an MR16 socket takes the two-pin 12V bulb. They are not interchangeable, so the socket is the first thing to check before ordering. If the fittings are being replaced anyway and the wiring is being simplified, moving to GU10 mains fittings removes the transformers entirely; if the 12V infrastructure stays, the MR16 bulb on an LED-compatible transformer is the drop-in.
